Using a trigonometric identity, the equivalent expression to sin(2x)cos(x) is:
2sin(x)cos²(x).
The trigonometric identity for sin(2x) is given by:
sin(2x) = 2sin(x)cos(x).
Hence the equivalent expression is found as follows:
sin(2x)cos(x) = 2sin(x)cos(x)cos(x) = 2sin(x)cos²(x).
More can be learned about trigonometric identities at https://brainly.com/question/26676095
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