The value of ( - 945^ ) is - Vidyadip

MCQ

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

✓
$-1$
B
$-2$
C
$-3$
D
$-4$

✓

Answer

Correct option: A.

$-1$

a
(a) $\tan ( - 945^\circ ) = \tan [ - (945^\circ )]$

$ = - \tan [(2 \times 360^\circ + 225^\circ )]$

$ = - \tan [225^\circ ] = - \tan 45^\circ = - 1$.

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