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Question
\tan\left(x\right)\cos\left(x\right)
Simplify the expression
\sin\left(x\right)
Evaluate
\tan\left(x\right)\cos\left(x\right)
\text{Use }\tan t = \frac{\sin t}{\cos t}\text{ to transform the expression}
\frac{\sin\left(x\right)}{\cos\left(x\right)}\times \cos\left(x\right)
\text{Cancel out the common factor }\cos\left(x\right)
\sin\left(x\right)\times 1
Solution
\sin\left(x\right)
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