A) \[22{}^\circ \]
B) \[23{}^\circ \]
C) \[24{}^\circ \]
D) \[25{}^\circ \]
Correct Answer: B
Solution :
\[\sin \,(3\theta )=\cos \,(\theta -2)\] \[\cos (90-3\theta )=cos(\theta -2)\] \[(\because \,\,\sin \theta =\cos \,(\theta -2)\] \[\therefore \,\,\,\,\,90+2=4\,\,\theta \] \[\Rightarrow \,\,\,\,\theta =\]You need to login to perform this action.
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