CUET Preparation Today
What is the value of the expression 100(sin 15° cos 15°)? |
50 75 100 25 |
25 |
100(sin 15° cos 15°) = 50 ( 2. sin 15°. cos 15°) { we know, 2sinA .cosA = sin2A } = 50 ( sin (2 ×15°) ) = 50 × \(\frac{1}{2}\) { sin 30° = \(\frac{1}{2}\) } = 25 |
