4.) Evaluate the following limits at infinity. If the limit is infinite specify whether it is plus or minus infinity. If the limit does not exist state so. 2x* +8 -3x + 5x-1 a) lim x+a V8x* - 2 b) lim Ans: 1/2 Ans: 0 2x +4 2x-1 sin 3x c) lim x+a x +x+2 d) lim Ans: 0 Ans: 0

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Chapter1: Functions And Models
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Explanation and work for 4a to 4d and 5a to 5d. Thanks!

4.) Evaluate the following limits at infinity. If the limit is infinite specify whether it
is plus or minus infinity. If the limit does not exist state so.
2x* +8
a) lim
- V 8x* - 2
-3x + 5x-1
Ans: 1/2
b) lim
Ans: 0
2x +4
2х -1
sin 3x
c) lim
x+a x +x+2
Ans: 0
d) lim
Ans: 0
5.) Evaluate the following limits. If the limit is infinite specify whether it is plus or
minus infinity. If the limit does not exist state so.
x +x-12
a) lim
4x² +2x-8
Vx -2
b) lim
Ans 7/6
Ans: 4
x-4
c.) lim cos(x) Ans: -1
Transcribed Image Text:4.) Evaluate the following limits at infinity. If the limit is infinite specify whether it is plus or minus infinity. If the limit does not exist state so. 2x* +8 a) lim - V 8x* - 2 -3x + 5x-1 Ans: 1/2 b) lim Ans: 0 2x +4 2х -1 sin 3x c) lim x+a x +x+2 Ans: 0 d) lim Ans: 0 5.) Evaluate the following limits. If the limit is infinite specify whether it is plus or minus infinity. If the limit does not exist state so. x +x-12 a) lim 4x² +2x-8 Vx -2 b) lim Ans 7/6 Ans: 4 x-4 c.) lim cos(x) Ans: -1
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