Question

Evaluate the following

`tan15 * (cos15)/(sin15)`

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Answer 1

Answer: 1

Explanation:

tan(15) * cos(15)/sin(15)

Use tan(x) = sin(x)/cos(x) to transform the expression:

= sin(15)/cos(15) * cos(15)/sin(15)

Cancel opposite terms on both sides:

= 1