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Starting from the left-hand side (LHS) of the identity
Learn how to solve trigonometric integrals problems step by step online.
$\cos\left(x+\frac{3\pi }{2}\right)$
Learn how to solve trigonometric integrals problems step by step online. Prove the trigonometric identity cos(x+(3*pi)/2)=sin(x). Starting from the left-hand side (LHS) of the identity. Multiply 3 times \pi . Divide 3\pi by 2. Using the cosine of a sum formula: \cos(\alpha\pm\beta)=\cos(\alpha)\cos(\beta)\mp\sin(\alpha)\sin(\beta), where angle \alpha equals x, and angle \beta equals \frac{3\pi}{2}.