Question

If cos (A-B)=1/root 2 sin(A+B) = root 3/2 & A,B are acute angles whose sum is acute find A and B​

Answer 1

Step-by-step explanation:

cos 45= 1/√2=cosA-B

A-B= 45_____1eq

similarly we find

A+ B= 60_____2 eq

solve both eq.by elimination or by substitution

A= 52.5

B= 7.5