A) \[\pm \frac{20}{41}\]
B) \[\pm \frac{1}{21}\]
C) \[\pm \frac{21}{29}\]
D) \[\pm \frac{20}{21}\]
Correct Answer: C
Solution :
\[\tan \theta =\frac{20}{21}\Rightarrow \cos \theta =\pm \frac{21}{29}\].You need to login to perform this action.
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