Question

if a=30° and B=60°
verify that sin2B=2SinB.cosB​

Answer 1

Step-by-step explanation:

sin (30+60) = sin30×cos60 + cos30×sin60

sin90 = (1/2 × 1/2) + root 3/2 × root 3/2

1 = 1/4 + 3/4

1 = 1

plzz tap to brainlest answer follow me