(A) We know that $\tan(-\theta) = -\tan(\theta)$.So,$\tan(-945^\circ) = -\tan(945^\circ)$.Since $945^\circ = 2 \times 360^\circ + 225^\circ$,we have $

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(A) We know that $\tan(-\theta) = -\tan(\theta)$.So,$\tan(-945^\circ) = -\tan(945^\circ)$.Since $945^\circ = 2 \times 360^\circ + 225^\circ$,we have $\tan(945^\circ) = \tan(225^\circ)$.Now,$\tan(225^\circ) = \tan(180^\circ + 45^\circ) = \tan(45^\circ) = 1$.Therefore,$\tan(-945^\circ) = -1$.

Class 11 Mathematics Trigonometrical Ratios, Functions and Identities Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

Easy

The value of $\tan (-945^\circ)$ is

A
$-1$
B
$-2$
C
$-3$
D
$-4$

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Chapter

Trigonometrical Ratios, Functions and Identities

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Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

Find the radian measure corresponding to the following degree measure: $-47^{\circ} 30^{\prime}$.

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Medium

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The value of $\cos A - \sin A$ when $A = \frac{5\pi}{4}$ is

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$\tan \theta \sin \left( \frac{\pi }{2} + \theta \right) \cos \left( \frac{\pi }{2} - \theta \right) = $

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The value of $\tan (-945^\circ)$ is

Similar Questions

Find the radian measure corresponding to the following degree measure: $-47^{\circ} 30^{\prime}$.

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