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India
Class X

Exact trig reciprocal values in first quadrant

Interactive practice questions

The point $P$P on the unit circle has the coordinates $\left(x,y\right)$(x,y). What is the value of $\sec\theta$secθ?

$\frac{1}{x}$1x

A

$x$x

B

$y$y

C

$\frac{1}{y}$1y

D
Easy
< 1min
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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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