Question

If sin(A+2B)=

and cos(A+4B)= 0 then find A and B. ​

Answer 1

Step-by-step explanation:

cos(2A+4B)=0

2A+4B=90°

2(A+2B)=90°

A+2B=45°

sin(A+2B)=sin45°

sin(A+2B)=1/√2