Answer
$\sin 33^{\circ}$ = $0.5446$
$\cos 57^{\circ}$ = $0.5446$
Thus, results justify the Cofunction Theorem.
Work Step by Step
Given pair is-
$\sin 33^{\circ}$ , $\cos 57^{\circ}$
Using calculator in degree mode-
(33 → $\sin$) and ( 57 → $\cos$)
$\sin 33^{\circ}$ = $0.544639035$
Rounding to four places past the decimal point-
$\sin 33^{\circ}$ = $0.5446$
$\cos 57^{\circ}$ = $0.544639035$
Rounding to four places past the decimal point-
$\cos 57^{\circ}$ = $0.5446$
Hence-
$\sin 33^{\circ}$ = $\cos 57^{\circ}$
Thus, results justify the Cofunction Theorem.
