This Question 1 pt 5 of 15 3 complete Use one or more ot me

This Question: 1 pt 5 of 15 (3 complete) Use one or more ot me six sum andan rence dentses 10 mamme exactvakue orthe ex ression sine 45 +60 sin 45 460 srcury your answel T pe an exact answe

Solution

use formula : sin(x+y) = sinxcosy + cosxsiny

sin(45 +60) = sin45cos60 + cos45sin60

= (1/sqrt2)(1/2) + (1/sqrt2)(sqrt3/2)

= (1 + sqrt3)/2sqrt2