Question

if sin 2A = cos ( a + 30)​

Answer 1

Step-by-step explanation:

ANSWER IS 40 DEGREE

PLEASE MAKE BRAINLIST MATE

Answer 2

Answer:

Step-by-step explanation:

sin2A=cos(A+30)

cos(90-2A)=cos(A+30)

90-2A=A+30

3A=60

A=20