Final Answer
Step-by-step Solution
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Starting from the left-hand side (LHS) of the identity
Applying the pythagorean identity: $\cos^2(\theta)=1-\sin(\theta)^2$
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$3-2\cos\left(x\right)^2$
Learn how to solve trigonometric identities problems step by step online. Prove the trigonometric identity 3-2cos(x)^2=2sin(x)^2+1. Starting from the left-hand side (LHS) of the identity. Applying the pythagorean identity: \cos^2(\theta)=1-\sin(\theta)^2. . Add the values 3 and -2.