Home
Class 8
MATHS
(-9)^2 = 81 . Is -9 a square root of 81?...

`(-9)^2 = 81` . Is -9 a square root of 81?

Promotional Banner

Topper's Solved these Questions

  • SQUARES AND SQUARE ROOTS.

    MBD|Exercise EXERCISE|90 Videos

  • REVISION TEST PAPER-3

    MBD|Exercise EXERCISE|33 Videos

  • UNDERSTANDING QUADRILATERALS

    MBD|Exercise EXAMPLE|128 Videos

Similar Questions

Explore conceptually related problems

Find whether each of the following numbers is a perfect square or not. 81

What will be the unit digit of the squares of the following numbers : 81

Find the square root of each of the following by the method of repeated subtraction: 81

If 0 lt= x lt= (pi)/(2) and 81^(sin^(2)x) + 81^(cos^(2)x) =30 then x is equal to :

Factorise : p^4 – 81

If the roots of the equaion x^4-12 x^3+c x^2+dx+81=0 are positive then the value of c is The value of d is. Roots of the equation 2cx+d=0 is

If 1,omega,omega^(2),...omega^(n-1) are n, nth roots of unity, find the value of (9-omega)(9-omega^(2))...(9-omega^(n-1)).

Number ending in 1, 4, 5, 6, 9 are not perfect squares.

Use the sign of >, -231+79+51 square -399+159+81

MBD-SQUARES AND SQUARE ROOTS.-EXERCISE
  1. (-9)^2 = 81 . Is -9 a square root of 81?

    Text Solution

    |

  2. What will be the unit digit of the squares of the following numbers: 4...

    Text Solution

    |

  3. What will be the unit digit of the squares of the following numbers: 5...

    Text Solution

    |

  4. What will be the unit digit of the squares of the following numbers: 7...

    Text Solution

    |

  5. What will be the unit digit of the squares of the following numbers: 2...

    Text Solution

    |

  6. What will be the unit digit of the squares of the following numbers: 1...

    Text Solution

    |

  7. What will be the unit digit of the squares of the following numbers: 3...

    Text Solution

    |

  8. What will be the unit digit of the squares of the following numbers: 2...

    Text Solution

    |

  9. What will be the unit digit of the squares of the following numbers: 5...

    Text Solution

    |

  10. What will be the unit digit of the squares of the following numbers: 1...

    Text Solution

    |

  11. What will be the unit digit of the squares of the following numbers: 3...

    Text Solution

    |

  12. The following numbers are obviously not perfect squares.Give reason. 5...

    Text Solution

    |

  13. The following numbers are obviously not perfect squares.Give reason. 6...

    Text Solution

    |

  14. The following numbers are obviously not perfect squares.Give reason. 3...

    Text Solution

    |

  15. The following numbers are obviously not perfect squares.Give reason. 2...

    Text Solution

    |

  16. The following numbers are obviously not perfect squares.Give reason. 8...

    Text Solution

    |

  17. The following numbers are obviously not perfect squares.Give reason. 9...

    Text Solution

    |

  18. The following numbers are obviously not perfect squares.Give reason. 3...

    Text Solution

    |

  19. The squares of which of the following would be odd numbers? 333

    Text Solution

    |

  20. The squares of which of the following would be odd numbers? 2665

    Text Solution

    |

  21. The squares of which of the following would be odd numbers? 24877

    Text Solution

    |