Question 595444
sin(75)


sin(45 + 30)


sin(45)cos(30) + cos(45)sin(30)


(sqrt(2)/2)(sqrt(3)/2) + (sqrt(2)/2)(1/2)


sqrt(6)/4 + sqrt(2)/4


(sqrt(6) + sqrt(2))/4



So <img src="http://latex.codecogs.com/gif.latex?\Large \sin(75^{\circ}) = \frac{\sqrt{6} + \sqrt{2}}{4}" title="x" />