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Test: Mean Value Theorem - JEE MCQ


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5 Questions MCQ Test Mathematics (Maths) Class 12 - Test: Mean Value Theorem

Test: Mean Value Theorem for JEE 2024 is part of Mathematics (Maths) Class 12 preparation. The Test: Mean Value Theorem questions and answers have been prepared according to the JEE exam syllabus.The Test: Mean Value Theorem MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Mean Value Theorem below.
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Test: Mean Value Theorem - Question 1

Geometrically the Mean Value theorem ensures that there is at least one point on the curve f(x) , whose abscissa lies in (a, b) at which the tangent is

Detailed Solution for Test: Mean Value Theorem - Question 1

GMVT states that for a given arc between two endpoints, there is at least one point at which the tangent to the arc is parallel to the secant through its endpoints.

Test: Mean Value Theorem - Question 2

When Rolle’s Theorem is verified for f(x) on [a, b] then there exists c such that​

Detailed Solution for Test: Mean Value Theorem - Question 2

Answer is
B) c ∈ (a, b) such that f'(c) = 0.
Statement for Rolle’s Theorem :
Suppose that a function f(x) is continuous on the closed interval [a,b] and differentiable on the open interval (a,b). Then if f(a)=f(b), then there exists at least one point c in the open interval (a,b) for which f′(c)=0.
 

Test: Mean Value Theorem - Question 3

If the function f (x) = x2– 8x + 12 satisfies the condition of Rolle’s Theorem on (2, 6), find the value of c such that f ‘(c) = 0​

Detailed Solution for Test: Mean Value Theorem - Question 3

f (x) = x2 - 8x + 12
Function satisfies the condition of Rolle's theorem for (2,6).
We need to find c for which f’(c) = 0
f’(x) = 2x – 8
f’(c) = 2c – 8 = 0
c = 4

Test: Mean Value Theorem - Question 4

The value of c for which Lagrange’s theorem f(x) = |x| in the interval [-1, 1] is​

Detailed Solution for Test: Mean Value Theorem - Question 4

For LMVT to be valid on a function in an interval, the function should be continuous and differentiable on the interval
Here,
f(x) = |x| , Interval : [-1,1]

For h>0,
f’(0) = 1
For h<0,
f’(0) = -1
So, the LHL and RHL are unequal hence f(x) is not differentiable at x=0.
In [-1,1], there does not exist any value of c for which LMVT is valid.

Test: Mean Value Theorem - Question 5

To verify Rolle’s Theorem which one is essential?

Detailed Solution for Test: Mean Value Theorem - Question 5

Rolle’s Theorem:
If a real-valued function f is continuous on a proper closed interval [a, b], differentiable on the open interval (a, b), and f (a) = f (b), then there exists at least one c in the open interval (a, b) such that
f’(c) = 0

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