Home
Class 14
MATHS
If x^2+1/x^2=7, then the value of x^3+1...

If `x^2+1/x^2=7, then the value of `x^3+1/x^3` Where x>0 is equal to:

A

15

B

16

C

12

D

18

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • 2018 Main Exam 2nd Shift

    PINNACLE|Exercise EXERCISE|280 Videos

  • AVERAGE

    PINNACLE|Exercise EXERCISE|164 Videos

Similar Questions

Explore conceptually related problems

If x^2+(1)/(x^2)=7 then the value of x^3+(1)/(x^3) where x gt 0 is equal to:

If x^2 - 3x +1=0, then the value of x +1/x is

If x(3-2/x)=3/x , then the value of x^3-(1)/(x^3) is equal to:

If x^(2) - 3x + 1 = 0 , then the value of x^(3) + (1)/(x^(3)) is equal to

If x^(2)+(1)/(x^(2))=7, find the value of x^(3)+(1)/(x^(3))

If x=2^((1)/(3)) +2^(-(1)/(3)) , then the value of 2x^(3) -6x-5 is equal to

If x^(2)+(1)/(x^(2))=7; find the value x^(3)-(1)/(x^(3))

PINNACLE-ALGEBRA-EXERCISE
  1. If x(3-2/x)=3/x, then the value of x^3-1/x^3 is equal to : यदि x(3-2...

    Text Solution

    |

  2. If 2=x+1/(1+1/(5+1/2)), then the value of x is equal to: यदि 2=x+1/...

    Text Solution

    |

  3. If x^2+1/x^2=7, then the value of x^3+1/x^3 Where x>0 is equal to:

    Text Solution

    |

  4. If sqrtx+1/sqrtx= 3, then x^3+1/x^3 is equal to: यदि sqrtx+1/sqrtx= ...

    Text Solution

    |

  5. The value of 5-(8+2 sqrt15)/4- 1/(8+2 sqrt15) is equal to: 5-(8+2 ...

    Text Solution

    |

  6. If x-3/x=6, x ne 0, then the value of (x^4 -27/x^2)/(x^2-3x-3) is : ...

    Text Solution

    |

  7. If a^2+b^2+c^2+216= 12(a+b-2c),then the value of sqrt(ab-bc-ca) is : ...

    Text Solution

    |

  8. If (5 sqrt5 x^3-3 sqrt3 y^3) div (sqrt5x- sqrt3y)=(Ax^2+By^2+Cxy), the...

    Text Solution

    |

  9. The value of (6.35xx6.35xx6.35+3.65xx3.65xx3.65)/(63.5xx63.5+36.5xx36....

    Text Solution

    |

  10. If x^4+x^(-4)=194,x > 0 then the value of x+1/x is: यदि x^4+x^(-4)=1...

    Text Solution

    |

  11. The value of (0.325xx0.325+ 0.175xx0.175+25xx0.00455)/ (5xx0.0065xx3.2...

    Text Solution

    |

  12. If x^2-5x+1=0, then the value of (x^4+1/x^2) div (x^2+1) is : यदि x^...

    Text Solution

    |

  13. If x + y + z = 19, xyz= 216 and xy + zx + yx = 114, then the value of ...

    Text Solution

    |

  14. If x^2+8y^2-12y-4xy+ 9 = 0, then the value of (7x - 8y) is: यदि x^2...

    Text Solution

    |

  15. If x^2+8y^2-12y-4xy+ 9 = 0, then the value of (7x - 8y) is: यदि x^2...

    Text Solution

    |

  16. If x^2-3x+1=0, then the value of (x^4+1/x^2) div (x^2+1) is : यदि x^...

    Text Solution

    |

  17. The value of (0.325xx0.325+0.175xx0.175+25xx0.00455)/(5xx0.0065xx3.25-...

    Text Solution

    |

  18. If x + y + z = 17, xyz= 171 and xy + zx + yx = 111, then the value of ...

    Text Solution

    |

  19. The value of (4.35 xx 4.35 xx 4.35 + 3.25 xx 3.25 xx 3.25)/(43.5 xx 43...

    Text Solution

    |

  20. If a^2+b^2+c^2+84= 4(a-2b+4c),then the value of sqrt(ab-bc+ca) is : ...

    Text Solution

    |