Question 366643
sin(105) = sin(60 + 45) = sin(60)*cos(45) + cos(60)*sin(45)
= {{{(sqrt(3)/2)*(sqrt(2)/2) + (1/2)*(sqrt(2)/2)}}}
={{{sqrt(6)/4)}}}+ {{{(sqrt(2))/4 }}}
={{{(sqrt(6)+ sqrt(2))/4 }}}