Question

18. If Cos A= %l and Sin B=/ find Sin(A+B).​

Answer 1

as per your question...

cosA=1 , sinB=1....

$cos {a}^{2} + sin {a}^{2} = 1$

$1 - 1 = sin {a}^{2}$

sin a = 0

cos b= 0

sin (a+b) =sina cosb +cos a sinb

= 1×0 +1×0

= 0+0

. =0

its your answer......

mark as brainlist.........