Question

lim x-> 0 sin5x/sin4x

Answer 1

Apply l'Hopital's rule, and it comes out extremely cleanly.

Answer 2

You can use l'Hopital's rule whenever you have a limit which comes out to be 0/0 or infinity/infinity and has the form " lim f(x)/g(x) ".

Answer 3

ok so in this case you have to use l'hopitals rule which will getyou

sin(5x) der is 5cos(5x)
sin(4x) der is 4cos(4x)
so you will end up wit

limit as n - > 0 of 5cos(0)/4cos(0) = 5/4

Answer 4

sweet!!!!!!!!!!!!!!!!!!!! ya I got 5/4, man this is really cool