Find the limit of $\frac{x^5-1}{x^3-1}$ as $x$ approaches $1$

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Final answer to the problem

$\frac{5}{3}$
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Step-by-step Solution

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  • Solve using limit properties
  • Solve using direct substitution
  • Solve the limit using factorization
  • Solve the limit using rationalization
  • Integrate by partial fractions
  • Product of Binomials with Common Term
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1

Factor the difference of cubes: $a^3-b^3 = (a-b)(a^2+ab+b^2)$

Learn how to solve limits by direct substitution problems step by step online.

$\lim_{x\to1}\left(\frac{x^5-1}{\left(x-1\right)\left(x^2+x+1\right)}\right)$

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Learn how to solve limits by direct substitution problems step by step online. Find the limit of (x^5-1)/(x^3-1) as x approaches 1. Factor the difference of cubes: a^3-b^3 = (a-b)(a^2+ab+b^2). We can factor the polynomial x^5-1 using the rational root theorem, which guarantees that for a polynomial of the form a_nx^n+a_{n-1}x^{n-1}+\dots+a_0 there is a rational root of the form \pm\frac{p}{q}, where p belongs to the divisors of the constant term a_0, and q belongs to the divisors of the leading coefficient a_n. List all divisors p of the constant term a_0, which equals -1. Next, list all divisors of the leading coefficient a_n, which equals 1. The possible roots \pm\frac{p}{q} of the polynomial x^5-1 will then be.

Final answer to the problem

$\frac{5}{3}$

Exact Numeric Answer

$1.6666667$

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Function Plot

Plotting: $\frac{x^5-1}{x^3-1}$

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7
8
9
0
a
b
c
d
f
g
m
n
u
v
w
x
y
z
.
(◻)
+
-
×
◻/◻
/
÷
2

e
π
ln
log
log
lim
d/dx
Dx
|◻|
θ
=
>
<
>=
<=
sin
cos
tan
cot
sec
csc

asin
acos
atan
acot
asec
acsc

sinh
cosh
tanh
coth
sech
csch

asinh
acosh
atanh
acoth
asech
acsch

How to improve your answer:

Main Topic: Limits by Direct Substitution

Find limits of functions at a specific point by directly plugging the value into the function.

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