Question

Which of the following is correct:

• A. $\sin 1^{\circ }>\sin 1$
• B. $\sin 1^{\circ }<\sin 1$
• C. $\cos 1^{\circ }<\sin 1$
• D. None of these

Answer 1

The correct option is B $\sin 1^{\circ }<\sin 1$

$1^c=\frac{{180}^o}{\pi }={57.3}^o$

$1^o<{57.3}^o$

$\sin 1^o<\sin {57.3}^o$

$\therefore \sin 1^o<\sin 1^c$