TRIGONOMETRY

[r267747]

Sin(A+B)/Cos(A-B)=1-m/1+m.
show that tan(pie/4-A).tan(pie/4-B)=m
I DON'T KNOW HOW TO SOLVE THIS QUESTION.
PLEASE SOLVE IT COMP.

 

[Deleted member 4993]

Sin(A+B)/Cos(A-B)=1-m/1+m.
show that tan(pie/4-A).tan(pie/4-B)=m
I DON'T KNOW HOW TO SOLVE THIS QUESTION.
PLEASE SOLVE IT COMP.

Can you expand Sin(A+B) and Cos(A+B) and tan(?/4 - A) and tan(?/4 -B)?

Do tha first. It will give you an idea about path forward.