Answer :

Condition (1):

Since, f(x)=x2-x-12 is a polynomial and we know every polynomial function is continuous for all xϵR.

f(x)= x2-x-12 is continuous on [-3,4].

Condition (2):

Here, f’(x)=2x-1 which exist in [-3,4].

So, f(x)= x2-x-12 is differentiable on (-3,4).

Condition (3):

Here, f(-3)=(-3)2-3-12=0

And f(4)=42-4-12=0

i.e. f(-3)=f(4)

Conditions of Rolle’s theorem are satisfied.

Hence, there exist at least one cϵ(-3,4) such that f’(c)=0

i.e. 2c-1=0


Value of

Thus, Rolle’s theorem is satisfied.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

Verify the Rolle’Mathematics - Exemplar

The value of c inMathematics - Exemplar

For the function Mathematics - Exemplar

Verify the Rolle’Mathematics - Exemplar

Verify the Rolle’Mathematics - Exemplar

Discuss theRD Sharma - Volume 1

Using Rolle’s theMathematics - Exemplar

Verify the Rolle’Mathematics - Exemplar

State True Mathematics - Exemplar

Discuss the appliMathematics - Exemplar