Question

question 12 (1 point)
what is the cosine of 55°?
0.6
0.57
0.574
0.5736

Explanation:

Step1: Use a scientific calculator

Set the calculator to degree mode.

Step2: Calculate $\cos(55^{\circ})$

Input $\cos(55)$ and get the result.

Answer:

$\cos(55^{\circ})\approx0.5736$ (the last option)