हिंदी

Show that the Lagrange'S Mean Value Theorem is Not Applicable to the Function F(X) = 1 X on [−1, 1] ?

Advertisements
Advertisements

प्रश्न

Show that the lagrange's mean value theorem is not applicable to the function
f(x) = \[\frac{1}{x}\] on [−1, 1] ?

योग
Advertisements

उत्तर

Given: 

\[f\left( x \right) = \frac{1}{x}\]

Clearly, \[f\left( x \right)\] does not exist for x = 0

Thus, the given function is discontinuous on \[\left[ - 1, 1 \right]\] .

Hence, Lagrange's mean value theorem is not applicable for the given function on \[\left[ - 1, 1 \right]\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 14: Mean Value Theorems - Exercise 15.2 [पृष्ठ १८]

APPEARS IN

आर.डी. शर्मा Mathematics Volume 1 and 2 [English] Class 12
अध्याय 14 Mean Value Theorems
Exercise 15.2 | Q 3 | पृष्ठ १८

संबंधित प्रश्न

Find the local maxima and local minima, of the function f(x) = sin x − cos x, 0 < x < 2π.


A cone is inscribed in a sphere of radius 12 cm. If the volume of the cone is maximum, find its height


f(x) = 3 + (x − 2)2/3 on [1, 3] Discuss the applicability of Rolle's theorem for the following function on the indicated intervals ? 


f (x) = sin \[\frac{1}{x}\] for −1 ≤ x ≤ 1 Discuss the applicability of Rolle's theorem for the following function on the indicated intervals ?


f (x) = x2/3 on [−1, 1] Discuss the applicability of Rolle's theorem for the following function on the indicated intervals ?


Verify Rolle's theorem for the following function on the indicated interval f (x) = (x − 1) (x − 2)2 on [1, 2] ?


Verify Rolle's theorem for the following function on the indicated interval f(x) = cos 2x on [−π/4, π/4] ?


Verify Rolle's theorem for the following function on the indicated interval \[f\left( x \right) = \frac{x}{2} - \sin\frac{\pi x}{6} \text { on }[ - 1, 0]\]?


Using Rolle's theorem, find points on the curve y = 16 − x2x ∈ [−1, 1], where tangent is parallel to x-axis.


At what point  on the following curve, is the tangent parallel to x-axis y = x2 on [−2, 2]
?


At what point  on the following curve, is the tangent parallel to x-axis y = 12 (x + 1) (x − 2) on [−1, 2] ?


Let C be a curve defined parametrically as \[x = a \cos^3 \theta, y = a \sin^3 \theta, 0 \leq \theta \leq \frac{\pi}{2}\] . Determine a point P on C, where the tangent to C is parallel to the chord joining the points (a, 0) and (0, a).


State Rolle's theorem ?


If from Lagrange's mean value theorem, we have \[f' \left( x_1 \right) = \frac{f' \left( b \right) - f \left( a \right)}{b - a}, \text { then }\]

 


When the tangent to the curve y = x log x is parallel to the chord joining the points (1, 0) and (e, e), the value of x is ______.


If f (x) = ex sin x in [0, π], then c in Rolle's theorem is



A company manufactures two types of novelty souvenirs made of plywood. Souvenirs of types A require 5 minutes each for cutting and 10 minutes each for assembling. Souvenirs of type B require 8 minutes each for cutting and 4 hours available for assembling. The profit is ₹ 50 each for type A and ₹60 each for type B souvenirs. How many souvenirs of each type should the company manufacture in order to maximize profit? Formulate the above  LPP and solve it graphically and find the maximum profit.


Show that height of the cylinder of greatest volume which can be inscribed in a right circular cone of height h and semi-vertical angle α is one-third that of the cone and the greatest volume of the cylinder is `(4)/(27) pi"h"^3 tan^2 α`.


Minimum value of f if f(x) = sinx in `[(-pi)/2, pi/2]` is ______.


Prove that f(x) = sinx + `sqrt(3)` cosx has maximum value at x = `pi/6`


The least value of the function f(x) = 2 cos x + x in the closed interval `[0, π/2]` is:


It is given that at x = 1, the function x4 - 62x2 + ax + 9 attains its maximum value on the interval [0, 2]. Find the value of a.


The minimum value of `1/x log x` in the interval `[2, oo]` is


For a continuous function on the closed interval \[a,d\], what does \[f(a)\] represent?


For a continuous function on the closed interval \[a,d\], what does \[f(c)\] represent?


For a continuous function on the closed interval \[a,d\], what does \[f(d)\] represent?


Which points are critical points for a function \[f\]?


Which points must always be checked when finding absolute extrema on a closed interval \[a,b\]?


How are the absolute maximum and absolute minimum determined after evaluating \[f(x)\] at all critical points and endpoints?


Why is \[x=0\] a critical point for \[f(x)=12x^{\frac{4}{3}}-6x^{\frac{1}{3}}\]?


Which list contains all critical points and endpoints for \[f(x)=12x^{\frac{4}{3}}-6x^{\frac{1}{3}}\] on \[-1,1\]?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×