Question

Which of the following is the least?

• A.
  $\sin 3$
• B.
  $\sin 2$
• C.
  $\sin 1$
• D.
  $\sin 7$

Answer 1

The correct option is A

$\sin 3$
Solving these types of questions requires the knowledge of the trigonometric graphs.
Here, for the given sine graph, we see the function value of $\sin 3,\sin 2,\sin 1\mathrm{and}\sin 7$,
Now, comparing these function value we see:
$\sin 2>\sin 1>\sin 7>\sin 3$
Thus, $\sin 3$ is the smallest.
hence, Option a. is correct.