Question 868199
Since 75 = 45 + 30, we can use the following identity:
{{{sin(45+30) = sin(45)*cos(30) + cos(45)*sin(30) = (1/sqrt(2))(sqrt(3)/2) + (1/sqrt(2))*(1/2)}}}
This can be simplified to {{{(sqrt(3)+1)/sqrt(8)}}}