Find the value of
`sin 75^@`

Explanation

sin 75^(circ) div sin (45^(circ)+30^(circ))=sin 45^(circ) cos 30^(circ)+cos 45^(circ) sin 30^(circ).

.=(1)/(sqrt(2)) xx (sqrt(3))/(2)+(1)/(sqrt(2)) xx (1)/(2)=(sqrt(3)+1)/(2 sqrt(2)), .s.