5. Trigonometry

Trig Functions — Quiz

Test your understanding of trig functions with 5 practice questions.

Practice Questions

Question 1

Solve the equation $2\sin^2 x - \sin x - 1 = 0$ for $0 \le x < 2\pi$.

Question 2

On which interval within one period is the function $y=\sin x$ concave up?

Question 3

Which identity correctly expresses $\cos\bigl(x+\tfrac{\pi}{2}\bigr)$?

Question 4

What is the amplitude of the function $y=2\sin x - 3\cos x$?

Question 5

Solve $\tan x + \sqrt{3}=0$ for $0 \le x < 2\pi$.