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Multiplying polynomials $\cot\left(x\right)^2$ and $\sec\left(x\right)^2-1$
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$\cot\left(x\right)^2\sec\left(x\right)^2-\cot\left(x\right)^2$
Learn how to solve simplify trigonometric expressions problems step by step online. Expand and simplify the trigonometric expression cot(x)^2(sec(x)^2-1). Multiplying polynomials \cot\left(x\right)^2 and \sec\left(x\right)^2-1. Apply the trigonometric identity: \cot(x)=\frac{\cos(x)}{\sin(x)}. Applying the secant identity: \displaystyle\sec\left(\theta\right)=\frac{1}{\cos\left(\theta\right)}. Multiplying fractions \frac{\cos\left(x\right)^2}{\sin\left(x\right)^2} \times \frac{1}{\cos\left(x\right)^2}.