Question

sin2A=2 sinA cosA is true when A=?
a. 0°
b. 30°
c. 45°
d. any angle​

Answer 1

Answer:

if a= 30

then

ACC to question

sin60= 2 sin 30 cos 30

root 3 by 2= 2 1/2. √3/2

√3/2= √3/2

hence

a=30

Answer 2

Answer: put teta =30° the evaluate you will get the correct answer