Question

1.
sin15º. cos 15º =
a) 13-1/2√2
b) 1/4
c) √3+1/2√2
d) 3/4
​

Answer 1

Mark as brilliant

1/4

We know sin 2x = 2 sin x cos x

So, sin x cos x = (1/2) sin 2x

So, sin 15° cos 15° = (1/2) sin (2*15°)

= (1/2)sin 30°

= (1/2)×(1/2)

= 1/4

Hope it helps you.......

Answer 2

Step-by-step explanation:

.....plz follow me plz