Question

if tan (A-B) =1/√3 and cos A=1/2,where A,B are acute angle then find measure of angle B ​

Answer 1

Answer:

cos A=1/2

cos A= cos 60

A=60

tan (A-B)=1/√3

tan (A-B)= tan 30

A-B=30

60-B=30

60-30=B

B=30