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Trig Functions (deg)
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India
Class X

Exact trigonometric values in first quadrant

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Practice

Interactive practice questions

Find the exact value of $\sin30^\circ$sin30°.

Easy
< 1min

Find the exact value of $\cos30^\circ$cos30°.

Easy
< 1min

Find the exact value of $\sin45^\circ$sin45°.

Easy
< 1min
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Outcomes

10.T.IT.1

Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined); motivate the ratios, whichever are defined at 0° and 90°. Values (with proofs) of the trigonometric ratios of 30°, 45° and 60°. Relationships between the ratios.

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