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ACTIVE LEARNING
PROCESS
Indeterminate Forms
Mechanical  1
Batch - C
1
Calculus (2110014)
Indeterminate Forms
Guided by :
Asst. Prof. Bhavesh Suthar Created by:
Preet Shah  160410119117
Hitesh Rawal  160410119111
Dishant Vaidhya  160410119135
Chirag Kataria  160410119030
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History Of Indeterminate Form
 The term was originally
introduced by Cauchys
student Moigno in the
middle of the 19th century
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Indeterminate Forms
 In calculus and other branches of mathematical
analysis, limit involving an algebraic
combination of function in an independent
variable may often be evaluated by replacing
these function by their limits.
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Types of Indeterminate Forms
 There are seven types of indeterminate forms are as
follow :
1. 0/0
2.  / 
3. 0* 
4.  - 
5. 0
6. 1
7. 
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L Hopital
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Actually, LHopitals Rule
was developed by his
teacher Johann Bernoulli.
De lHopital paid
Bernoulli for private
lessons, and then published
the first Calculus book
based on those lessons.
And has rights to use
Bernoullis discoveries.
Guillaume De l'H担pital
1661 - 1704
Johann Bernoulli
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Johann Bernoulli
1667 - 1748
Johann Bernoulli was a Swiss Mathematician
Johann was sent to LHopital in Paris
to teach a method or rule for solving
problems involving limits that would
apparently be expressed by the ratio of
zero to zero, now called LHopitals rule on
indeterminate forms.
LHopitals Rule
 L Hopitals Rule is a general method for evaluating the
indeterminate forms 0/0 and /. This rule states that
lim f(x)/g(x) = lim f(x)/g(x)
x0 x0
where f & g are the derivatives of f & g.
 Note : This rule does not apply to expression /0 and 1/0, & so on.
 These derivatives will allow one to perform algebraic simplification and
eventually evaluate the limit.
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LHospitals Rule
 Rules to evaluate 0/0 form :
1. Check whether the limit is an indeterminate
form. If it is not, then we cannot apply L
Hopitals rule.
2. Differentiate f(x) and g(x) separately.
3. If g(x)  0, then the limit will exist. It may be
finite, + or -. If g(x) = 0 then follow rule 4.
4. Differentiate f(x) and g(x) separately.
5. Continue the process till required value is
reached.
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0/0 Form Example
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0/0 Form Example
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/ Form Example
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/ Form Example
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0x Form
 Limit of the form lim f(x) = 0, lim g(x)=
X0 X0
are called indeterminate form of the type 0x.
 If we write f(x)g(x) = f(x)/[1/g(x)], then the limit
becomes of the form (0/0).
 This can be evaluated by using L Hopitals rule.
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1515
0x Form Example
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0x Form Example
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- Form
 Limit of the form lim f(x) = , lim g(x)=
X0 X0
are called indeterminate form of the type -.
 If we write form
 lim [f(x)-g(x)] = lim [1/g(x)-1/f(x)] ,
X0 X0 1/[f(x)g(x)]
then the limit becomes of the form (0/0) & can be
evaluated by using the hopitals rule.
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- Form Example
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- Form Example
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Exponential Indeterminate Forms
 Exponential Indeterminate forms are 0, 1, .
 The is called an indeterminate form of the
type
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)(
)(lim
xg
ax
xf
Steps To Evaluate
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0 Form Example
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0 Form Example
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1 Form Example
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1 Form Example
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 Form Example
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 Form Example
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Thank You
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