Question: sin(4x)/tan(3x) (lim approaching 0)
1- sin(4x)/((sin(3x)/(cos(3x)) (because tan=sinx/cosx
2- (sin(4x)(cos(3x))/sin(3x) (fraction on a fraction = flip up and multiply)
3-Next you're going to add in 3/3 and 4/4, this is allowed because they are both equivalent to 1. Because you know...