Question

If $\sin x=\cos y$, then $x+y={45}^0$;

If true enter 1 else 0

Answer 1

$\sin x=\cos y$
$\sin x=\sin (90-y)$
$x=90-y$
$x+y={90}^{\circ }$
Hence, the statement, $x+y={45}^{\circ }$ is not true.