Question

SinA +cosB =1 A =30 and B isan acute angle then find the value of b

Answer 1

Step-by-step explanation:

Sin 30= 1\2

hence 1\2 + cos b = 1

( carry over 1\2)

cos b= 1/2

therefore, b= 60

Answer 2

Step-by-step explanation:

sin a =30°=1/2 1/2+cos b =1 cos b =1-1/2 cos b=1/2=60°