Question

13
If sin (A+B)=1 and cos (A – B)= ;0º < A+B < 90°, AB
2
then find the values of A and B.​

Answer 1

Answer:

A=90° B=0°

Step-by-step explanation:

sin(A+B)=1=sin90°

A+B=90 ..(1)

cos(A-B)=0=cos90°

A-B=90 ..(2)

Adding 1 and 2 we get

A=90, B=0