Suppose f and g are functions such that lim f(x) = 5, %3D lim f(x) = 2, and lim g(x) = 4. Given this information, calcu- late the limits that follow, if possible. If it is not possible with the given information, explain why. x3 %3D x4 X3 13. lim (2f(x) – 3g(x)) 14. lim -2f(x) X3 X→3 15. lim f(x) 16. lim f(x)g(x) X→7 X4 17. lim (x) - 3 18. lim f(g(x)) x3 x→3 8(x) x2 -1 19. Graph the functions f(x) = x+1 and g(x) :

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Chapter1: Functions
Section1.2: Functions Given By Tables
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1.5
Limit Rules and Calculating Basic Limits
135
Suppose f and g are functions such that lim f(x) = 5,
lim f(x) = 2, and lim g(x) = 4. Given this information, calcu-
late the limits that follow, if possible. If it is not possible with
the given information, explain why.
s equal
X3
X4
X3
ped in
than
13. lim (2f (x) – 3g(x))
14. lim -2f(x)
X→3
X→3
form
15. lim f(x)
16. lim f(x)g(x)
m.
eeze
X→4
17. lim (x) – 3
8(x)
18. lim f(g(x))
X→3
x→3
late.
ule,
x² – 1
19. Graph the functions f(x) =x+1 and g(x)
and show that they are equal everywhere except at one
point. Then show that f (x) and g(x) have different values
but the same limit, at this point.
x - 1
ose
on.
4-x
20. Graph the functions f(x) = 2 – x and g(x) =
and show that they are equal everywhere except at or
point. Then show that f (x) and g(x) have different value
but the same limit, at this point.
%3D
x+2
by
he
at
21. In the Squeeze Theorem for limits, we require that 1(x)
le
f(x) s u(x) for all x sufficiently close to c, but we
not require this inequality to hold at the point x =
Transcribed Image Text:1.5 Limit Rules and Calculating Basic Limits 135 Suppose f and g are functions such that lim f(x) = 5, lim f(x) = 2, and lim g(x) = 4. Given this information, calcu- late the limits that follow, if possible. If it is not possible with the given information, explain why. s equal X3 X4 X3 ped in than 13. lim (2f (x) – 3g(x)) 14. lim -2f(x) X→3 X→3 form 15. lim f(x) 16. lim f(x)g(x) m. eeze X→4 17. lim (x) – 3 8(x) 18. lim f(g(x)) X→3 x→3 late. ule, x² – 1 19. Graph the functions f(x) =x+1 and g(x) and show that they are equal everywhere except at one point. Then show that f (x) and g(x) have different values but the same limit, at this point. x - 1 ose on. 4-x 20. Graph the functions f(x) = 2 – x and g(x) = and show that they are equal everywhere except at or point. Then show that f (x) and g(x) have different value but the same limit, at this point. %3D x+2 by he at 21. In the Squeeze Theorem for limits, we require that 1(x) le f(x) s u(x) for all x sufficiently close to c, but we not require this inequality to hold at the point x =
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