Question

use a calculator to find the approximate value of the expression. round the answer to two decimal places. the sine of the complementary angle to 75° a. 0.65 b. 0.57 c. 0.34 d. 0.26 please select the best answer from the choices provided

Explanation:

Step1: Find complementary angle

Complementary angles sum to 90°. So the complementary angle to 75° is 90° - 75°= 15°.

Step2: Calculate sine value

Use a calculator to find $\sin(15^{\circ})$. $\sin(15^{\circ})\approx0.26$.

Answer:

D. 0.26