Question

1. Evaluate:
(i) 2 sin 15° cos 15°​

Answer 1

Answer:

to evaluate 2 sin15° cos15°

Step-by-step explanation:

formula used: sin x = 2 sinx/2 cos x/2

=> sin 30° = 2 sin 30°/2 cos 30°/2

=> sin 30° = 2 sin 15° cos 15°

therefore 2 sin 15° cos 15° = sin 30° = 1/2