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Applying the tangent identity: $\displaystyle\tan\left(\theta\right)=\frac{\sin\left(\theta\right)}{\cos\left(\theta\right)}$
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$\sin\left(x\right)\frac{\sin\left(x\right)}{\cos\left(x\right)}\sec\left(x\right)$
Learn how to solve problems step by step online. Simplify the trigonometric expression sin(x)tan(x)sec(x). Applying the tangent identity: \displaystyle\tan\left(\theta\right)=\frac{\sin\left(\theta\right)}{\cos\left(\theta\right)}. Multiplying the fraction by \sin\left(x\right)\sec\left(x\right). Applying the secant identity: \displaystyle\sec\left(\theta\right)=\frac{1}{\cos\left(\theta\right)}. Multiply the fraction and term.