# Homework Help: Trigonometric Limit Problem

1. Aug 25, 2012

### PotentialE

1. The problem statement, all variables and given/known data
find the limit as x approaches 0 of 3sin4x / sin3x

2. Relevant equations
sin2x = 2sinxcosx
lim as x ->0 of sinx / x =1

3. The attempt at a solution
sin4x = 2 sin2x cos2x

2. Aug 25, 2012

### kushan

Divide and multiply both numerator and denominator with the angles of resective sin .
You will get one famous limit , after that its a breeze