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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
−
∞
x
2
e
x
\displaystyle\lim_{x\to -\infty} x^{2}e^{x}
x
→
−
∞
lim
x
2
e
x
. a)
∞
\infty
∞
b) The limit is undefined because
e
x
e^{x}
e
x
is negative for
x
<
0
x<0
x
<
0
. c)
0
0
0
d) The limit does not exist because it is an indeterminate form
0
⋅
∞
0\cdot\infty
0
⋅
∞
.
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