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The value of \(2\sin 15° \cos 15°\) is:

  • A.1
  • B.1/2
  • C.√3/2
  • D.1/√2

Answer: B

This expression is in the form of the double angle identity \(\sin(2A) = 2\sin A \cos A\).

Here, A = 15°.

The expression equals \(\sin(2 \times 15°) = \sin(30°)\).

The value of \(\sin 30°\) is 1/2.

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