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# Trigonometric Identities - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

## Quick Facts

• Trigonometric Identities is considered one of the most asked concept.

• 30 Questions around this concept.

## Solve by difficulty

If $\dpi{100} A=\sin ^{2}x+\cos ^{4}x,$ then for all real $\dpi{100} x$

For $\alpha, \beta \in(0, \pi / 2)$, let $3 \sin (\alpha+\beta)=2 \sin (\alpha-\beta)$ and a real number $\mathrm{k}$ be such that $\tan \alpha=\mathrm{k} \tan \beta$. Then, the value of $\mathrm{k}$ is equal to

## Concepts Covered - 1

Trigonometric Identities

Trigonometric Identities

These identities are the equations that hold true regardless of the angle being chosen.

$\\\mathrm{\sin^2\mathit{t}+\cos^2\mathit{t}=1}\\\mathrm{1+\tan^2\mathit{t}=\sec^2\mathit{t}}\\\mathrm1+{\cot^2\mathit{t}=\csc^2\mathit{t}}\\\mathrm{\tan \mathit{t}=\frac{\sin \mathit{t}}{\cos \mathit{t}},\;\;\cot \mathit{t}=\frac{\cos\mathit{t}}{\sin\mathit{t}}}$

## Study it with Videos

Trigonometric Identities

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## Books

### Reference Books

#### Trigonometric Identities

Mathematics for Joint Entrance Examination JEE (Advanced) : Trigonometry

Page No. : 2.4

Line : 43