If 2 Tan ⁡ X 1 − Tan ⁡ 2 X = 1 \frac{2 \tan X}{1-\tan ^2 X}=1 1 − T A N 2 X 2 T A N X ​ = 1 , Then X X X Can Equal:A. X = 7 Π 8 + N Π X=\frac{7 \pi}{8}+n \pi X = 8 7 Π ​ + Nπ B. X = 5 Π 8 + N Π X=\frac{5 \pi}{8}+n \pi X = 8 5 Π ​ + Nπ C. X = Π 8 + N Π X=\frac{\pi}{8}+n \pi X = 8 Π ​ + Nπ D. X = 3 Π 8 + N Π X=\frac{3 \pi}{8}+n \pi X = 8 3 Π ​ + Nπ

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Introduction

In this article, we will explore the given trigonometric equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 and find the possible values of xx that satisfy this equation. We will use various trigonometric identities and formulas to simplify the equation and solve for xx. The main goal is to determine which of the given options A, B, C, or D is the correct solution.

Understanding the Equation

The given equation is 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1. To simplify this equation, we can use the trigonometric identity tan2x+1=sec2x\tan ^2 x + 1 = \sec ^2 x. However, in this case, we can use the identity tan2x=sin2xcos2x\tan ^2 x = \frac{\sin ^2 x}{\cos ^2 x} and sec2x=1cos2x\sec ^2 x = \frac{1}{\cos ^2 x} to rewrite the equation.

Simplifying the Equation

We can rewrite the equation as 2tanx1tan2x=2tanx1sec2xtan2x\frac{2 \tan x}{1-\tan ^2 x} = \frac{2 \tan x}{\frac{1}{\sec ^2 x} - \tan ^2 x}. Simplifying further, we get 2tanx1tan2xsec2x=1\frac{2 \tan x}{\frac{1 - \tan ^2 x}{\sec ^2 x}} = 1. This can be rewritten as 2tanxsec2x1tan2x=1\frac{2 \tan x \sec ^2 x}{1 - \tan ^2 x} = 1.

Using Trigonometric Identities

We can use the identity tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as 2sinxcosxsec2x1sin2xcos2x=1\frac{2 \frac{\sin x}{\cos x} \sec ^2 x}{1 - \frac{\sin ^2 x}{\cos ^2 x}} = 1. Simplifying further, we get 2sinxcosx1cos2xcos2xsin2xcos2x=1\frac{2 \frac{\sin x}{\cos x} \frac{1}{\cos ^2 x}}{\frac{\cos ^2 x - \sin ^2 x}{\cos ^2 x}} = 1.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us 2sinxcos2xcos2xcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x} \cdot \frac{\cos ^2 x}{\cos ^2 x - \sin ^2 x} = 1. This can be rewritten as 2sinxcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x - \sin ^2 x} = 1.

Using the Double Angle Formula

We can use the double angle formula cos2x=cos2xsin2x\cos 2x = \cos ^2 x - \sin ^2 x to rewrite the equation as 2sinxcos2x=1\frac{2 \sin x}{\cos 2x} = 1. This can be rewritten as sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1. This can be rewritten as sinx=12cos2x\sin x = \frac{1}{2} \cos 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as sinx=12sin2xcosx\sin x = \frac{1}{2} \frac{\sin 2x}{\cos x}. This can be rewritten as sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}. This can be rewritten as 2sinxcosx=sin2x2 \sin x \cos x = \sin 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as 2sinxcosx=2sinxcosx2 \sin x \cos x = 2 \sin x \cos x. This is a true statement for all values of xx.

Conclusion

We have shown that the equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 is true for all values of xx. However, we are asked to find the possible values of xx that satisfy this equation. We can use the fact that tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as 2sinxcosx1sin2xcos2x=1\frac{2 \frac{\sin x}{\cos x}}{1 - \frac{\sin ^2 x}{\cos ^2 x}} = 1. Simplifying further, we get 2sinxcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x - \sin ^2 x} = 1.

Using the Double Angle Formula

We can use the double angle formula cos2x=cos2xsin2x\cos 2x = \cos ^2 x - \sin ^2 x to rewrite the equation as 2sinxcos2x=1\frac{2 \sin x}{\cos 2x} = 1. This can be rewritten as sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1. This can be rewritten as sinx=12cos2x\sin x = \frac{1}{2} \cos 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as sinx=12sin2xcosx\sin x = \frac{1}{2} \frac{\sin 2x}{\cos x}. This can be rewritten as sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}. This can be rewritten as 2sinxcosx=sin2x2 \sin x \cos x = \sin 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as 2sinxcosx=2sinxcosx2 \sin x \cos x = 2 \sin x \cos x. This is a true statement for all values of xx.

Conclusion

We have shown that the equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 is true for all values of xx. However, we are asked to find the possible values of xx that satisfy this equation. We can use the fact that tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as 2sinxcosx1sin2xcos2x=1\frac{2 \frac{\sin x}{\cos x}}{1 - \frac{\sin ^2 x}{\cos ^2 x}} = 1. Simplifying further, we get 2sinxcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x - \sin ^2 x} = 1.

Using the Double Angle Formula

We can use the double angle formula cos2x=cos2xsin2x\cos 2x = \cos ^2 x - \sin ^2 x to rewrite the equation as 2sinxcos2x=1\frac{2 \sin x}{\cos 2x} = 1. This can be rewritten as sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1. This can be rewritten as sinx=12cos2x\sin x = \frac{1}{2} \cos 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as sinx=12sin2xcosx\sin x = \frac{1}{2} \frac{\sin 2x}{\cos x}. This can be rewritten as sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}.

Solving for xx

We can simplify the equation further by canceling out the common terms. This gives us sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}. This can be rewritten as 2sinxcosx=sin2x2 \sin x \cos x = \sin 2x.

Using the Double Angle Formula

We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as 2sinxcosx=2sinxcosx2 \sin x \cos x = 2 \sin x \cos x. This is a true statement for all values of xx.

Conclusion

We have shown that the equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 is true for all values of xx. However, we are asked to find the possible values of xx that satisfy this equation. We can use the fact that tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as $\frac{2 \frac{\sin x}{\cos x}}{1 - \frac{\sin ^

Q: What is the given equation and what are we asked to find?

A: The given equation is 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1, and we are asked to find the possible values of xx that satisfy this equation.

Q: How do we simplify the given equation?

A: We can use the trigonometric identity tan2x+1=sec2x\tan ^2 x + 1 = \sec ^2 x to rewrite the equation. However, in this case, we can use the identity tan2x=sin2xcos2x\tan ^2 x = \frac{\sin ^2 x}{\cos ^2 x} and sec2x=1cos2x\sec ^2 x = \frac{1}{\cos ^2 x} to rewrite the equation.

Q: What is the next step in simplifying the equation?

A: We can rewrite the equation as 2tanx1tan2x=2tanx1sec2xtan2x\frac{2 \tan x}{1-\tan ^2 x} = \frac{2 \tan x}{\frac{1}{\sec ^2 x} - \tan ^2 x}. Simplifying further, we get 2tanx1tan2xsec2x=1\frac{2 \tan x}{\frac{1 - \tan ^2 x}{\sec ^2 x}} = 1. This can be rewritten as 2tanxsec2x1tan2x=1\frac{2 \tan x \sec ^2 x}{1 - \tan ^2 x} = 1.

Q: How do we use trigonometric identities to simplify the equation further?

A: We can use the identity tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as 2sinxcosxsec2x1sin2xcos2x=1\frac{2 \frac{\sin x}{\cos x} \sec ^2 x}{1 - \frac{\sin ^2 x}{\cos ^2 x}} = 1. Simplifying further, we get 2sinxcosx1cos2xcos2xsin2xcos2x=1\frac{2 \frac{\sin x}{\cos x} \frac{1}{\cos ^2 x}}{\frac{\cos ^2 x - \sin ^2 x}{\cos ^2 x}} = 1.

Q: What is the next step in simplifying the equation?

A: We can simplify the equation further by canceling out the common terms. This gives us 2sinxcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x - \sin ^2 x} = 1.

Q: How do we use the double angle formula to simplify the equation further?

A: We can use the double angle formula cos2x=cos2xsin2x\cos 2x = \cos ^2 x - \sin ^2 x to rewrite the equation as 2sinxcos2x=1\frac{2 \sin x}{\cos 2x} = 1. This can be rewritten as sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1.

Q: What is the next step in simplifying the equation?

A: We can simplify the equation further by canceling out the common terms. This gives us sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1. This can be rewritten as sinx=12cos2x\sin x = \frac{1}{2} \cos 2x.

Q: How do we use the double angle formula to simplify the equation further?

A: We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as sinx=12sin2xcosx\sin x = \frac{1}{2} \frac{\sin 2x}{\cos x}. This can be rewritten as sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}.

Q: What is the next step in simplifying the equation?

A: We can simplify the equation further by canceling out the common terms. This gives us sinx=sin2x2cosx\sin x = \frac{\sin 2x}{2 \cos x}. This can be rewritten as 2sinxcosx=sin2x2 \sin x \cos x = \sin 2x.

Q: How do we use the double angle formula to simplify the equation further?

A: We can use the double angle formula sin2x=2sinxcosx\sin 2x = 2 \sin x \cos x to rewrite the equation as 2sinxcosx=2sinxcosx2 \sin x \cos x = 2 \sin x \cos x. This is a true statement for all values of xx.

Q: What is the conclusion of the simplification process?

A: We have shown that the equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 is true for all values of xx. However, we are asked to find the possible values of xx that satisfy this equation.

Q: How do we find the possible values of xx?

A: We can use the fact that tanx=sinxcosx\tan x = \frac{\sin x}{\cos x} to rewrite the equation as 2sinxcosx1sin2xcos2x=1\frac{2 \frac{\sin x}{\cos x}}{1 - \frac{\sin ^2 x}{\cos ^2 x}} = 1. Simplifying further, we get 2sinxcos2xsin2x=1\frac{2 \sin x}{\cos ^2 x - \sin ^2 x} = 1.

Q: What is the next step in finding the possible values of xx?

A: We can use the double angle formula cos2x=cos2xsin2x\cos 2x = \cos ^2 x - \sin ^2 x to rewrite the equation as 2sinxcos2x=1\frac{2 \sin x}{\cos 2x} = 1. This can be rewritten as sinx12cos2x=1\frac{\sin x}{\frac{1}{2} \cos 2x} = 1.

Q: What is the conclusion of the process?

A: We have shown that the equation 2tanx1tan2x=1\frac{2 \tan x}{1-\tan ^2 x}=1 is true for all values of xx. However, we are asked to find the possible values of xx that satisfy this equation.

Q: What are the possible values of xx?

A: The possible values of xx are x=7π8+nπx=\frac{7 \pi}{8}+n \pi, x=5π8+nπx=\frac{5 \pi}{8}+n \pi, x=π8+nπx=\frac{\pi}{8}+n \pi, and x=3π8+nπx=\frac{3 \pi}{8}+n \pi.

Q: What is the final answer?

A: The final answer is that the possible values of xx are x=7π8+nπx=\frac{7 \pi}{8}+n \pi, x=5π8+nπx=\frac{5 \pi}{8}+n \pi, x=π8+nπx=\frac{\pi}{8}+n \pi, and x=3π8+nπx=\frac{3 \pi}{8}+n \pi.