Question

Cos A + Sin B = 1; A=60 and B is an acute angle, then find the value

of B​

Answer 1

Answer:

B = 30°

Step-by-step explanation:

Cos A + Sin B = 1

=> Cos 60° + Sin B = 1

=> 1/2 + Sin B = 1

=> Sin B = 1 - 1/2

=> Sin B = 1/2

=> Sin B = Sin 30°

=> B = 30°