Question

Please answer if you know the answer! please!! ​

Answer 1

The required solution is in attachment

How to solve trigonometric prooving questions?

• First of all you should learn trigonometric Identities.

• Second, algeberic identities are commonly used in these type of questions.

• Focus on RHS first and try to convert LHS into terms of RHS by focusing on RHS.

• If after doing all these steps, you are unable to solve it. Then convert in into terms of sine and cos. Mostly questions are solved in terms of sin and cos.

• Keep practicing :)

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Trigonometric Identities:

$\boxed{\begin{minipage}{6cm} Important Trigonometric identities :- \\ \\ \: \: 1)\:\sin^2\theta+\cos^2\theta=1 \\ \\ 2)\:\sin^2\theta= 1-\cos^2\theta \\ \\ 3)\:\cos^2\theta=1-\sin^2\theta \\ \\ 4)\:1+\cot^2\theta=\text{cosec}^2 \, \theta \\ \\5)\: \text{cosec}^2 \, \theta-\cot^2\theta =1 \\ \\ 6)\:\text{cosec}^2 \, \theta= 1+\cot^2\theta \\\ \\ 7)\:\sec^2\theta=1+\tan^2\theta \\ \\ 8)\:\sec^2\theta-\tan^2\theta=1 \\ \\ 9)\:\tan^2\theta=\sec^2\theta-1 \end{minipage}}$

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Answer 2

Here is your answer mate

I hope it will help you .