Question

If (sin A + sin B)= 2 then what is the value of sin( A+B)
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Answer 1

there is only one possibility that sin A + sin B =2.

if sin A =1 and sin B =1

=> A=B=90

Sin (A+B) =sin (90 +90)

=> sin (180) = 0✔️✔️

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Answer 2

Answer:

This question will correct only when ( A=B)

Because (sinA) has maximum value is 1 which is at 90° therefore ,for sinA+ sinB = 2 . ‘B' must be 90° .so if A=B then they should be 90° for making equal to 2.

So, sin(A+B)

= sin(180°)

=0

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