Home
Class 12
MATHS
यदि y={x+sqrt(x^(2)+a^(2))}^(n), सिद्ध...

यदि `y={x+sqrt(x^(2)+a^(2))}^(n)`, सिद्ध करें कि
`(dy)/(dx)=(ny)/(sqrt(x^(2)+a^(2)))`.

लिखित उत्तर

Verified by Experts

दिया है ,`y={x+sqrt(x^(2)+a^(2))}^(n)`
`u=x+sqrt(x^(2)+a^(2))` रखें तो `y=u^(n)`
`therefore(dy)/(du)=n u^(n-1)=n{x+sqrt(x^(2)+a^(2))}^(n-1)`
तथा `(du)/(dx)=1+(1)/(2)(x^(2)+a^(2))^(-1/2)(2x)`
`=1+(x)/(sqrt(x^(2)+a^(2)))=(x+sqrt(x^(2)+a^(2)))/(sqrt(x^(2)+a^(2)))`
अब `(dy)/(dx)=(dy)/(du)*(du)/(dx)=n{x+sqrt(x^(2)+a^(2))}^(n-1)*(x+sqrt(x^(2)+a^(2)))/(sqrt(x^(2))+a^(2))`
`=(n{x+sqrt(x^(2)+a^(2))}^(n))/(sqrt(x^(2)+a^(2)))=(ny)/(sqrt(x^(2)+a^(2)))` [ (1) से]
Promotional Banner

टॉपर्स ने हल किए ये सवाल

  • अवकलन

    KC SINHA|Exercise उदाहरण (अवकलज पर विविध प्रश्न )|1 Videos
  • अवकलन

    KC SINHA|Exercise उदाहरण अवकलज पर विविध प्रश्न|8 Videos
  • अवकलज के अनुप्रयोग ( राशियों के परिवर्तन की दर )

    KC SINHA|Exercise OBJECTIVE QUESTIONS|4 Videos
  • आव्यूह

    KC SINHA|Exercise OBJECTIVE QUESTIONS|23 Videos
KC SINHA-अवकलन -OBJECTIVE QUESTIONS
  1. यदि y={x+sqrt(x^(2)+a^(2))}^(n), सिद्ध करें कि (dy)/(dx)=(ny)...

    Text Solution

    |

  2. यदि y=log{log(logx)}, तब (dy)/(dx)=

    Text Solution

    |

  3. यदि y=e^(x+e^(x+e^(x+...oo)) तब (dy)/(dx)=

    Text Solution

    |

  4. यदिxsqrt(1+y)+sqrt(1+x)=0, (dy)/(dx) =

    Text Solution

    |

  5. If y=sqrt(sinxsqrt(sinx+sqrt(sinx+.."to"infty))),then (dy)/(dx) , is ...

    Text Solution

    |

  6. यदि x^(2) + y^(2) = 1 तब

    Text Solution

    |

  7. यदि f(x)=cot^(-1)((x^(x)-x^(-x))/(2)) , then f'(1)=

    Text Solution

    |

  8. यदि y=xtany, तो (dy)/(dx)=

    Text Solution

    |

  9. यदि f(x)=4x^(8), तो

    Text Solution

    |

  10. Differential co-e efficient of sec(tan^(-1)x) is

    Text Solution

    |

  11. The differential co- efficient of e^(x^(3)) with respect to log x is

    Text Solution

    |

  12. यदि x=acos^(4)theta,y=asin^(4)theta तो (dy)/(dx)है? यदि theta=(3pi)/...

    Text Solution

    |

  13. If siny+e^(-xcosy)=e, then (dy)/(dx), at (1,pi) is

    Text Solution

    |

  14. d/(dx)(a^(x)-x^(x))=

    Text Solution

    |

  15. (d)/(dx)(3^(x)+10^(3x-1))=

    Text Solution

    |

  16. If y="sin"^(-1)(2x)/(1+x^(2)),0ltxlt1and0ltylt(pi)/(2), then (dy)/(dx)...

    Text Solution

    |

  17. यदि x^(y)=e^(x-y), तब (dy)/(dx)=

    Text Solution

    |

  18. (d)/(dx)[logsqrt((1-cosx)/(1+cosx)) equals

    Text Solution

    |

  19. If y="sin"^(-1)(2x)/(1+x^(2)),0ltxlt1and0ltylt(pi)/(2), then (dy)/(dx)...

    Text Solution

    |

  20. यदि siny=xsin(a+y) तब (dy)/(dx) =

    Text Solution

    |

  21. निम्नलिखित फलनों का x के सापेक्ष अवकलन कीजिए : sec^(-1).(x^(2)+1)/(x...

    Text Solution

    |