# Math Help - Squeeze thrm

1. ## Squeeze thrm

Lim x^2(cos20pix)
x->0

-x^2 <or equal to cos20pix<or equal to x^2

Lim X^2=0
X->0
lim -x^2=0 -1<or equal to cospix<or equal to 1
x->0

lim x^2(cospix) =0.
x->0

Can someone check this and see if I did this right?

2. The working is right, but please be careful, because on the second line you dropped x^2 and by the end you had dropped the 20.

3. Thanks! I'll be more careful, I didn't even realize I left those out.