What is the value of the expression 100(sin 15° cos 15°)?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 25
100(sin150 cos150)
= 50(2sin150 cos150)
Since, 2sinAcosA = sin2A and Sin300 = 1/2
50(sin300)
= 50 × 1/2
= 25