I need help with this trig limit problem!?

0 ⤊

lim 1-cos(3x) / 7x

as x->0

I know I need to use the conjugate but I'm not really sure how or what to do from there. Thanks!

2007-08-28 13:08:29 · 2 answers · asked by AppleCard! 2 in Science & Mathematics ➔ Mathematics

This is in the form of 0/0 so L'Hospital's Rule can be used
= lim -3sin3x/7 = 0/7 = 0
x --> 0

2007-08-28 13:19:59 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋

ironduke's solution is correct.

2007-08-28 13:22:10 · answer #2 · answered by grompfet 5 · 0⤊ 0⤋