Question

If tanB =1 and sin (A+ B) = 1, then the value of A is​

Answer 1

Step-by-step explanation:

tanB = 1

We know that tan(45°) = 1

=> B = 45°

And sin(90°)=1

Thus A + B = 90°

=> A+ 45° = 90°

=> A = 45°