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TS EAMCET · Maths · Application of Derivatives

The number of admissible values of C obtained when the Lagrange's mean value theorem is applied for the function fx=x on 2,5 is

  1. A 0
  2. B only one
  3. C infinite
  4. D finitely many
Verified Solution

Answer & Solution

Correct Answer

(C) infinite

Step-by-step Solution

Detailed explanation

Given, f(x)=x ⇒f'(x)=1 Here, f(5)=5, f(2)=2 Apply LMVT in [2,5) f(5)-f(2)5-2=f'C ⇒5-25-2=f'C ⇒f'C=1 So, infinite values of C are possible.