Home
Class 14
MATHS
If 16a^4+36 a^2 b^2+81 b^4=91 and 4a^2 +...

If `16a^4+36 a^2 b^2+81 b^4=91` and `4a^2 +9b^2-6ab=13`, then what is the value of 3ab?
यदि `16a^4+36 a^2 b^2+81 b^4=91` तथा `4a^2 +9b^2-6ab=13` है, तो 3ab का मान क्या होगा ?

A

`-3`

B

`3/2`

C

5

D

`-3/2`

Text Solution

Verified by Experts

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 a^2+b^2=169 , and ab=60, (a succ b) then what is the value of (a^2-b^2) : यदि a^2+b^2=169 है और ab=60, (a succ b) है, तो (a^2-b^2) का मान क्या होगा ?

If a + b = 8 and a +a^2 b+b+ab^2=128 , then the positive value of a^3+b^3 is : यदि a + b = 8 तथा a +a^2 b+b+ab^2= 128 है, तो a^3+b^3 का धनात्मक मान कितना होगा?

If 2^a=3 and 9^b=4 then the value of a.b is

If a^4+a^2b^2+b^4=8 and a^2+ab+b^2=4 then ab=

If a^2+b^2=88 , and ab=6, (a succ 0, b succ 0) then what is the value of (a^3+b^3) : यदि a^2+b^2=88 है औरab=6,जहाँ (a succ 0, b succ 0) है, तो (a^3+b^3) का मान क्या होगा ?

If A+B = 12 and AB = 17, what is the value of A^3+B^3 ? यदि A+B = 12 तथा AB = 17 है, तो A^3+B^3 का मान क्या होगा ?

If a+b+c = 4 and ab + bc + ca = 1, then the value of a^3+b^3+c^3-3abc is: यदि a+b+c = 4 और ab + bc + ca = 1 है, तो a^3+b^3+c^3-3abc का मान क्या होगा ?

If a^3 + b^3 = 218 and a + b = 2, then the value of ab is : यदि a^3 + b^3 = 218 और a + b = 2 है, तो ab का मान है:

PINNACLE-ALGEBRA-EXERCISE
  1. If 12x^2-21x+1=0, then what is the value of 9x^2+(16x^2)^-1 ? यदि 12...

    Text Solution

    |

  2. If P= (x^3+y^3)/((x-y)^2+3xy), Q= ((x+y)^2-3xy)/(x^3-y^3) and R=((x+y)...

    Text Solution

    |

  3. If 16a^4+36 a^2 b^2+81 b^4=91 and 4a^2 +9b^2-6ab=13, then what is the ...

    Text Solution

    |

  4. If x^2-2 sqrt5 x+1=0, then what is the value of x^5+1/x^5 ? यदि x^2-...

    Text Solution

    |

  5. If 20x^2-30x+1=0, then what is the value of 25x^2+1/(16x^2) ? यदि 20...

    Text Solution

    |

  6. If x^4+x^2y^2+y^4=273 and x^2-xy+y^2= 13, then the value of xy is : ...

    Text Solution

    |

  7. (x^2(x-4)^2)/((x+4)^2-4x) div ((x^2-4x)^3)/((x+4)^2) xx (64-x^3)/(16-x...

    Text Solution

    |

  8. (a+ b + c- d)^2-(a-b-c+d)^2 =?

    Text Solution

    |

  9. If x-1/x=11, then x^3-1/x^3 is equal to : यदि x-1/x=11 है, तो x^3-1/...

    Text Solution

    |

  10. The coefficient of x^2 in (2x+y)^3 is : (2x+y)^3 में x^2 का गुणां...

    Text Solution

    |

  11. If 3a = 27b = 81c and abc = 144, then the value of 12(1/a+1/(2b)+1/(5c...

    Text Solution

    |

  12. If the value of (a+b-2)^2+ (b+c-5)^2+ (c+a-5)^2=0, then the value of s...

    Text Solution

    |

  13. If a+b+c = 9 and ab+bc+ca = -22, then the value of a^3+b^3+c^3-3abc is...

    Text Solution

    |

  14. If a+1/a=5, then a^3+1/a^3 is equal to : यदि a+1/a=5 है, तो a^3+1/a...

    Text Solution

    |

  15. The coefficient of x in (x-3y)^3 is : (x-3y)^3 का गुणांक है :

    Text Solution

    |

  16. If a^3+1/a^3=52, then the value of 2(a+1/a) is : यदि a^3+1/a^3=52 है...

    Text Solution

    |

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

    Text Solution

    |

  18. If b+c = ax, c+a = by and a+b = cz, then the value of 1/9[1/(x+1)+1/(y...

    Text Solution

    |

  19. The coefficient of y in the expansion (2y-5)^3 is : व्यंजक (2y-5)^3...

    Text Solution

    |

  20. If 1-64x^3-12x+px^2=(1-4x)^3, then the value of p is: यदि 1-64x^3-1...

    Text Solution

    |