Evaluate the following: 31^ - 59^ - Vidyadip

Question

Evaluate the following$: \sin31^\circ - \cos59^\circ $

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Answer

$\sin31^\circ - \cos59^\circ $
$= \sin(90^\circ - 59^\circ ) - \cos59^\circ $
$= \cos59^\circ - \cos59^\circ $
$= 0.$

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