hi, can someone show me why $\displaystyle sin(3x)/2x$ = 3/2? is it because they multiplied $\displaystyle sinx/x$ by 3/2? if so why does 3sinx = sin3x??
hi, can someone show me why $\displaystyle sin(3x)/2x$ = 3/2? is it because they multiplied $\displaystyle sinx/x$ by 3/2? if so why does 3sinx = sin3x??