Question

Need help!! Q.13.

Answer 1

\[f(x)=(x+2x ^{3})^{4}\]
a=-1

Answer 2

@myko @Champion

Answer 3

@cwrw238

Answer 4

what's the question?

Answer 5

Us the definition of continuity and the properties of limits to show that the function is continuous at the given number a.

Answer 6

you have to show that:
\[\lim _{x->-1} f(x)=f(-1)\]

Answer 7

ohh so all i hv to do is to plug in -1 in the f(x) function?

Answer 8

that for f(-1).
Later use the fact that lim(x+2x^3) = lim x + lim 2x^3
and lim x->a f(g(x))= f(g(a))

Answer 9

so is it 81?

Answer 10

it doesn't asks you for the value, it just say "show it continuous"

Answer 11

oh okay! thank you