Question

If sin (A - B) =1/2
and cos (A + B) =1/2
then find A and B.​

Answer 1

A=45 ,B = 15

Step-by-step explanation:

we know that sin 30 = 1/2

and cos 60= 1/2

so now sin (A-B) = 1÷2 》A-B = 30

cos(A-B)=1÷2》

A-B = 60

now add both we get a= 45 b =15