मराठी

Evaluate the following: d∫1+x2x4dx - Mathematics

Advertisements
Advertisements

प्रश्न

Evaluate the following:

`int sqrt(1 + x^2)/x^4 "d"x`

बेरीज
Advertisements

उत्तर

Let I = `int sqrt(1 + x^2)/x^4 "d"x`

= `int sqrt(x^2 (1 + 1/x^2))/x^4 "d"x`

= `int (xsqrt(1 + 1/x^2))/x^4 "d"x`

= `int (xsqrt(1 + 1/x^2))/x^4 "d"x`

Put `1 + 1/x^2` = r2

⇒ `(-2)/x^3 "d"x = 2"t" "dt"`

⇒ `- "dx"/x^3` = t dt

∴ I = `- int "t"^2 "dt"`

= `- "t"^3/3 + "C"`

= `- 1/3(1 + 1/x^2)^(3/2) + "C"`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Integrals - Exercise [पृष्ठ १६४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 12
पाठ 7 Integrals
Exercise | Q 13 | पृष्ठ १६४

संबंधित प्रश्‍न

Evaluate : `int_0^3dx/(9+x^2)`


\[\int\frac{x - 1}{\sqrt{x + 4}} dx\]

\[\int\frac{1 + \tan x}{1 - \tan x} dx\]

\[\int\frac{1}{e^x + 1} dx\]

\[\int\frac{e^{2x}}{e^{2x} - 2} dx\]

\[\int\frac{{cosec}^2 x}{1 + \cot x} dx\]

\[\int\frac{10 x^9 + {10}^x \log_e 10}{{10}^x + x^{10}} dx\]

\[\int\frac{e^x}{\left( 1 + e^x \right)^2} dx\]

\[\int\frac{\left\{ e^{\sin^{- 1} }x \right\}^2}{\sqrt{1 - x^2}} dx\]


\[\int\frac{1 + \sin x}{\sqrt{x - \cos x}} dx\]

\[\int\frac{x^3}{\left( x^2 + 1 \right)^3} dx\]

Evaluate the following integrals:

\[\int\frac{\sqrt{1 + x^2}}{x^4}dx\]

`  ∫    {1} / {cos x  + "cosec x" } dx  `

Evaluate the following integrals:

\[\int e^{2x} \text{ sin }\left( 3x + 1 \right) \text{ dx }\]

Evaluate the following integral:

\[\int\frac{x^2}{\left( x^2 + 4 \right)\left( x^2 + 9 \right)}dx\]

Evaluate the following integral:

\[\int\frac{x^3 + x + 1}{x^2 - 1}dx\]

\[\int\frac{\cos x}{\left( 1 - \sin x \right) \left( 2 - \sin x \right)} dx\]

Evaluate the following integral:

\[\int\frac{x^2}{x^4 - x^2 - 12}dx\]

 


\[\int\frac{( x^2 + 1) ( x^2 + 4)}{( x^2 + 3) ( x^2 - 5)} dx\]

\[\int\frac{x^2 + 1}{x^4 - x^2 + 1} \text{ dx }\]

Evaluate the following integral:

\[\int\frac{1}{\sin^4 x + \sin^2 x \cos^2 x + \cos^4 x}dx\]

Evaluate:\[\int\frac{\sec^2 \sqrt{x}}{\sqrt{x}} \text{ dx }\]

 


Evaluate:\[\int\frac{\sin \sqrt{x}}{\sqrt{x}} \text{ dx }\]


Evaluate:\[\int \sec^2 \left( 7 - 4x \right) \text{ dx }\]


Write the value of\[\int\sec x \left( \sec x + \tan x \right)\text{  dx }\]


Evaluate: \[\int\frac{x + \cos6x}{3 x^2 + \sin6x}\text{ dx }\]


Evaluate:

\[\int \cos^{-1} \left(\sin x \right) \text{dx}\]


Evaluate the following:

`int (3x - 1)/sqrt(x^2 + 9) "d"x`


Evaluate the following:

`int x/(x^4 - 1) "d"x`


Evaluate the following:

`int sqrt(2"a"x - x^2)  "d"x`


Evaluate the following:

`int sqrt(x)/(sqrt("a"^3 - x^3)) "d"x`


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×