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Newton-Leibnitz's Formula - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • Newton-Leibniz's Formula is considered one of the most asked concept.

  • 45 Questions around this concept.

Solve by difficulty

\lim _{x \rightarrow 0} \frac{\int_0^{x^2} \cos t^2 d t}{x \sin x}=\ldots \ldots

 

If F(x)=\frac{1}{x^2} \int_4^x\left\{4 t^2-2 F^{\prime}(t)\right\} d t, then F^{\prime}(4)  equals:

 

\mathrm{ \lim _{x \rightarrow 0}\left(\frac{1}{x^5} \int_0^x c^{-t^2} d t-\frac{1}{x^4}+\frac{1}{3 x^2}\right)}

If the function f:[0,8] \rightarrow R  is differentiable then for 0<\alpha, \beta<2, \int_0^8 f(t) d t

is equal to

Concepts Covered - 1

Newton-Leibniz's Formula

If the functions u(x) and v(x) are defined and f(t) is a continuous function, then

\\\mathbf{\frac{d}{dx}\left [ \int_{u(x)}^{v(x)}f(t)\;dt \right ]=f(v(x))\cdot\frac{d}{dx}\left \{ v(x) \right \}-f(u(x))\cdot\frac{d}{dx}\left \{u(x) \right \}}

Proof:

\\\mathrm{Let\;\;\;\;\;\;\;\frac{d}{dx}\left \{ F(x) \right \}=f(x)}\\\\\mathrm{\Rightarrow \;\;\;\;\;\;\;\int_{u(x)}^{v(x)}f(t)\;dt=F(v(x))-F(u(x))}\\\\\\\mathrm{\Rightarrow \;\;\;\;\;\;\;\frac{d}{dx}\left [\int_{u(x)}^{v(x)}f(t)\;dt \right ]=\frac{d}{dx}\left (F(v(x))-F(u(x)) \right )}\\\\\\\mathrm{\Rightarrow \;\;\;\;\;\;\;\frac{d}{dx}\left [\int_{u(x)}^{v(x)}f(t)\;dt \right ]=F'(v(x))\frac{d}{dx}\left \{ v(x) \right \}-F'(u(x))\frac{d}{dx}\left \{ u(x) \right \}}\\\\\\\mathrm{\Rightarrow \;\;\;\;\;\;\;\frac{d}{dx}\left [\int_{u(x)}^{v(x)}f(t)\;dt \right ]=f(v(x))\frac{d}{dx}\left \{ v(x) \right \}-f(u(x))\frac{d}{dx}\left \{ u(x) \right \}}

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Newton-Leibniz's Formula

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Newton-Leibniz's Formula

Mathematics for Joint Entrance Examination JEE (Advanced) : Calculus

Page No. : 8.27

Line : 27

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