48,387 views
23 votes
23 votes
0
1 cos 4
lim .
x ( 1) x
x
I
 x e



User Samiles
by
2.9k points

1 Answer

9 votes
9 votes

Answer:

Hello, please consider the following.

Evaluate the limit of the numerator and the limit of the denominator.

Tap for more steps...

0

0

Since

0

0

is of indeterminate form, apply L'Hospital's Rule. L'Hospital's Rule states that the limit of a quotient of functions is equal to the limit of the quotient of their derivatives.

lim

x

0

e

x

2

1

cos

(

x

)

1

=

lim

x

0

d

d

x

[

e

x

2

1

]

d

d

x

[

cos

(

x

)

1

]

Find the derivative of the numerator and denominator.

Tap for more steps...

lim

x

0

2

e

x

2

x

sin

(

x

)

Evaluate the limit of the numerator and the limit of the denominator.

Tap for more steps...

0

0

Since

0

0

is of indeterminate form, apply L'Hospital's Rule. L'Hospital's Rule states that the limit of a quotient of functions is equal to the limit of the quotient of their derivatives.

lim

x

0

2

e

x

2

x

sin

(

x

)

=

lim

x

0

d

d

x

[

2

e

x

2

x

]

d

d

x

[

sin

(

x

)

]

Find the derivative of the numerator and denominator.

Tap for more steps...

lim

x

0

4

e

x

2

x

2

+

2

e

x

2

cos

(

x

)

Take the limit of each term.

Tap for more steps...

4

e

(

lim

x

0

x

)

2

(

lim

x

0

x

)

2

+

2

e

(

lim

x

0

x

)

2

cos

(

lim

x

0

x

)

Evaluate the limits by plugging in

0

for all occurrences of

x

.

Tap for more steps...

4

e

0

2

0

2

+

2

e

0

2

cos

(

0

)

Simplify the answer.

Thank you

Explanation:

User Adam Sibik
by
2.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.