Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

Solve the equation \(4 \cos 2x + 2 \sin x = -2\) for \(0 \le x \le 2 \pi\).

Video Solution:

Video Solution

Video solution locked

A free account saves your progress; this video needs a course plan.

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.

Answer:\(x=\frac{\pi}{2},\ 3.99,\ 5.44\text{ rad}\)

Need help? Join our A-Maths tuition classes.

Learn more