Prove that \( \sin^4 \theta = \frac{3}{8} - \frac{1}{2} \cos \,2\theta + \frac{1}{8} \cos \,4\theta \)
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Ws 29 + < eS 40 can be written as sin(29 + 40). Using the sum formula for sine, sin(a + b) = sin(a)cos(b) + cos(a)sin(b), we can rewrite sin(29 + 40) as sin(29)cos(40) + cos(29)sin(40). Now, let's simplify the right side of the equation. √(1 - cos²θ) can Show more…
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