Question

lim(sqrt(x^4-x^2))=0

True or false?

Answer 1

if you have limit as x->2, then TRUE

Answer 2

i have limit x->0

Answer 3

Oh, my bad. I read it as sqrt(4-x^2)

If x->0, then since x^4 and x^2 are both 0, then limit is also 0, so TRUE.

so, right answer, wrong reason. :-)