Question: Verify the identity. cos (x y) cosx cos y = cosx Sin y + smx Write the right side ofthe identity as one fraction

Verify the identity. cos (x y) cosx cos y = cosx Sin

Verify the identity. cos (x y) cosx cos y = cosx Sin y + smx Write the right side ofthe identity as one fraction with the same denominator y. Rewrite the numerator and the denominator separately. Distribute the terms of the numerator. Do not apply any trigonometric identities yet

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