Question

Given that sin A=1/2,cosB=1/2then the value of (A+B)is:
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Answer 1

Answer:

A+B = 90°

Explanation:

Given

i ) sinA =

Now ,

A = 30° ----(1)

ii ) cosB =

=> B = 60° ----(2)

Now,

Value of (A+B)

= 30°+60° [ from (1)&(2) ]

= 90°

Therefore,.

A+B = 90°

••••

Answer 2

Step-by-step explanation:

sinA = 1/2 that means it is sinA = Sin30

cosB = 1/2 that means it is cosB = cos60

angle A = 30 and angle B = 60

then A+B = 90