A) \[\sin \theta =\sin \phi \]
B) \[\cos \theta =\cos \phi \]
C) \[\tan \theta =\tan \phi \]
D) \[\sec \phi =\text{cosec}\theta \]
Correct Answer: A
Solution :
\[\phi +\theta =180{}^\circ \]\[\Rightarrow \]\[\theta =180{}^\circ -\phi \] \[\sin \theta =\sin \,\,(180{}^\circ -\phi )\] \[\sin \theta =\sin \phi \]You need to login to perform this action.
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