Solving trigonometric equations using double-angle identities

Solving trigonometric equations using double-angle identities

Lessons

  • 1.
    Utilizing "Double-Angle Identities" to solve:

    a)
    cos2x=2sin2x\cos 2x = 2 \sin^2x
    0x0 \leq x < 2π2\pi

    b)
    tanxcotx=2\tan x - \cot x = 2
    0x0 \leq x < 2π2\pi