12. Trigonometric Identities

12. Trigonometric Identities / Solving Trigonometric Equations Using Identities / 문제 8

문제 8

Solve the following trigonometric equation on the interval [0, 2π) with the help of an identity.
sin 2x = 2cos x

0, π/2, 3π/2

π/2, 3π/2

0, π/2

π/2, 3π/2, 2π

Solve the following trigonometric equation on the interval [0, 2π) with the help of an identity.sin 2x = 2cos x