Question

tan B = 1 and sin (A + B) = 1
then find value of A​

Answer 1

Answer:

A=45

Step-by-step explanation:

tanB = 1

Then, in tan value 1 lies in 45 degree.

so, B=45°

sin(A+B)=1

sin(A+45)=1

In sin, value 1 comes in 90°

so,

sin(45+45)=1

sin(90)=1

Therefore A=45°