Trigonometric Identities
Problems
= sin(θ)Problem : Prove the following identity: (sin(θ))4 +2(sin(θ))2(cos(θ))2 + (cos(θ))4 = tan(θ)cot(θ)
contents
- cos(θ)(cot(θ))2 = cot(θ)sin(θ)
- cos(θ)(cot(θ))2 = cot(θ)sin(θ)
= 
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= 1
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