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India
Class X

Reciprocal identities

Interactive practice questions

Find $\sec\theta$secθ if $\cos\theta=\frac{2}{9}$cosθ=29.

Easy
< 1min

Find $\csc\theta$cscθ if $\sin\theta=\frac{4}{7}$sinθ=47.

Easy
< 1min

Find $\cot\theta$cotθ if $\tan\theta=11$tanθ=11.

Easy
< 1min

Find the value of $\cot\theta$cotθ if $\tan\theta=0.1$tanθ=0.1 .

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.

10.T.IT.2

Trigonometric Identities: Proof and applications of the identity sin^2 A + cos^2 A = 1. Only simple identities to be given. Trigonometric ratios of complementary angles.

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