Question

Please solve this question below.

Answer 1

HELLO DEAR,

given that :-

$\sin( \alpha ) + \sin( \beta ) = 2$

we know that:-

the maximum value of sin is 1 and minimum value is 0

0 < sin < 1

according to the questions:-

sin alpha +sin beta =2

it is possible when both the values of sin alpha and sin beta will --1--

1+1=2

hence,

sin alpha =1

=> sin alpha=sin 90°

=> alpha =90°

----;;;-similarly,---------

=> sin beta =1

=> beta =90°

hence, the value of

sin alpha× sin beta

=> sin 90° × sin 90°

=> 1×1 =1

I HOPE ITS HELP YOU DEAR,
THANKS