Question

Consider functions $f(x)=\cos x$ and $g(x)=\frac{x}{10}$, then number of solutions of equation $f(|x|)=g(|x|)$ is

• A. 2
• B. 4
• C. 6
• D. 8

Answer 1

Answer: (C)

10 cos$x=|x|$
(Even function)

$\therefore$ Total $=6$ solution.