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When multiplying two powers that have the same base ($\cos\left(2x\right)$), you can add the exponents
Learn how to solve simplify trigonometric expressions problems step by step online.
$2\cos\left(2x\right)^2+2\sin\left(2x\right)\sin\left(2x\right)$
Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression 2cos(2x)cos(2x)+2sin(2x)sin(2x). When multiplying two powers that have the same base (\cos\left(2x\right)), you can add the exponents. When multiplying two powers that have the same base (\sin\left(2x\right)), you can add the exponents. Factoring by 2. Applying the pythagorean identity: \sin^2\left(\theta\right)+\cos^2\left(\theta\right)=1.