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CBSE - Class 10 > Mathematics > Introduction to Trigonometry Worksheets

Free CBSE - Class 10 Mathematics - Introduction to Trigonometry worksheets

Sample Worksheets

Here is a Sample Worksheet for you to Practice. Download this worksheet to see the answers.

1.

Choose the correct option and justify your choice : (i) $\frac{2 \tan 30^\circ}{1 + \tan^2 30^\circ} =$

1.

$\sin 60^\circ$

 2.

$\cos 60^\circ$

 3.

$\tan 60^\circ$

 4.

$\sin 30^\circ$
2.

Choose the correct option and justify your choice : (iii) $\sin 2A = 2 \sin A$ is true when $A =$

1.

$0^\circ$

 2.

$30^\circ$

 3.

$45^\circ$

 4.

$60^\circ$
3.

Choose the correct option and justify your choice : (iv) $\frac{2 \tan 30^\circ}{1 - \tan^2 30^\circ} =$

1.

$\cos 60^\circ$

 2.

$\sin 60^\circ$

 3.

$\tan 60^\circ$

 4.

$\sin 30^\circ$
4.
If $\tan (A + B) = \sqrt{3}$ and $\tan (A – B) = \frac{1}{\sqrt{3}}$; $0^\circ < A + B \le 90^\circ$; $A > B$, find $A$ and $B$.
5.
State whether the following are true or false. Justify your answer. (i) $\sin (A + B) = \sin A + \sin B$.
6.
State whether the following are true or false. Justify your answer. (ii) The value of $\sin \theta$ increases as $\theta$ increases.
7.
State whether the following are true or false. Justify your answer. (iii) The value of $\cos \theta$ increases as $\theta$ increases.
8.
State whether the following are true or false. Justify your answer. (iv) $\sin \theta = \cos \theta$ for all values of $\theta$.
9.
State whether the following are true or false. Justify your answer. (v) $\cot A$ is not defined for $A = 0^\circ$.
10.
Prove the following identities, where the angles involved are acute angles for which the expressions are defined. (x) $(\frac{1 + \tan^2 A}{1 + \cot^2 A}) = (\frac{1 - \tan A}{1 - \cot A})^2 = \tan^2 A$
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Chapters in CBSE - Class 10 Mathematics

Pair of linear equations in two variable Worksheet Coordinate geometry Worksheet Arithmetic Progression Worksheet Real numbers Worksheet Polynomials Worksheet Quadratic Equations Worksheet Applications of Trigonometry Worksheet Areas Related to Circles Worksheet Circles Worksheet Constructions Worksheet Probability Worksheet Statistics Worksheet Surface Areas and Volumes Worksheet Triangles Worksheet

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