solving cos(4x)=cos(x)
Find the general solution : `cos 4x = cos 2x`...
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trigonometry sum prove that tan4x - (1/cos4x) = (sin2x-cos2x) /(sin2x+cos2x)
if ` sin x + sin^2 x = 1`, then the value of `cos^2 x + cos^4x` is
198. Integral of cos 2x by cos 4x. TRIGONOMETRIC. RESOLVED EXERCISE.
Prove that: `(cos4x+cos3x+cos2x)/(sin4x+sin3x+sin2x)=cot3x`...
TRIGONOMETRY EQUATION: cos(4x) = -sqrt(3)/2, x = [0, 2pi)
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Day 69: Integrating sin^2x or cos^2x • 100 Days of A-Level Maths 🧮
