Question

Cos(a+b)=4/5 sin(a-b)=5/13 a and b lie between 0 and 45 degrees Find tan2a

Answer 1

Answer:

Step-by-step explanation:

Cos(a+b)=4/5, Sin(a-b)=5/13

Divide: Sin(a-b)/cos(a+b)=4×13/5×5

Tan2a=52/25

I hope u got the answer