Question

find a lim f(x)=(9x^4+x^2-5)/((x^2+1)(x^4-3))
when x approach 2?

Answer 1

replace \(x\) by \(2\) and see what you get

Answer 2

2 is in the domain of this function, and any rational function is continuous on its domain
i.e. \(\lim_{x\to a}f(x)=f(a)\)

Answer 3

should i factorize first?
?

Answer 4

it is already factored, so no, just compute

Answer 5

thanks

Answer 6

yw