A) - 1
B) - 2
C) - 3
D) - 4
Correct Answer: A
Solution :
\[\tan (-945{}^\circ )=\tan [-(945{}^\circ )]\] \[=-\tan [(2\times 360{}^\circ +225{}^\circ )]\] \[=-\tan [225{}^\circ ]=-\tan 45{}^\circ =-1\].You need to login to perform this action.
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