Home
Class 9
MATHS
Do the product : (i) sqrt(7) xx 3sqrt(7...

Do the product : (i) ` sqrt(7) xx 3sqrt(7) (ii) sqrt(18) xx sqrt(72)`

Text Solution

Verified by Experts

The correct Answer is:
(i) 22 , (ii) ` 18 xx2 = 36`
Promotional Banner

Topper's Solved these Questions

  • REAL NUMBERS

    CALCUTTA BOOK HOUSE|Exercise EXERCISE 1.1 (MCQ)|4 Videos

  • REAL NUMBERS

    CALCUTTA BOOK HOUSE|Exercise Short answer type questions|11 Videos

  • PROPERTIES OF PARALLELOGRAM

    CALCUTTA BOOK HOUSE|Exercise EXERCISE - 1 (Long - answer type questions)|14 Videos

  • SECTION FORMULAS

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-2|30 Videos

Similar Questions

Explore conceptually related problems

Do the sum : (i) sqrt(12) + sqrt(108) (ii)sqrt(8) + sqrt(50)

Do the sum sqrt(18) + sqrt(128)

Do the product (sqrt3 + sqrt5) (sqrt6 + sqrt15)

Simplify : sqrt2 - sqrt(18) + sqrt(27) - sqrt(32)

Find the product: (5 - sqrt3) (sqrt3 -1) (5 + sqrt3) (sqrt3 +1)

log_sqrt(7)(49) =

Rationalise the denominator of (i) 1/sqrt7 (ii) 1/(sqrt5 + sqrt3) (iii) 1/(sqrt7 -1) (iv) 1/(sqrt(7) - sqrt(6))

(a) The fourth-proportional of 8, 10 and 12 is _________ . (b) The value of p when a/sqrt3 = b/sqrt5 = c/sqrt7 = (sqrt(3a) + sqrt(5b) - sqrt(7c))/p is ______ .

Prove that (a) 3 sqrt48 - 4 sqrt75 + 5 sqrt(192) = 32 sqrt3 (b) sqrt72 + 3 sqrt50 - sqrt(512) + sqrt32) = 9 sqrt2 (c) 2 sqrt(125) + 5 sqrt45 - 2 sqrt(245) - 6 sqrt20 = - sqrt5

CALCUTTA BOOK HOUSE-REAL NUMBERS -Exercise 1.4 ( Long answer)
  1. Do the product : (i) sqrt(7) xx 3sqrt(7) (ii) sqrt(18) xx sqrt(72)

    Text Solution

    |

  2. If E be a random experiment or rolling a dice and S be its sample spac...

    Text Solution

    |

  3. If sqrt((sqrt10 +1)/(sqrt10-1)) then find the value of (x 1/x)

    Text Solution

    |

  4. IF x =13 + 2sqrt(42) then find the value of ( sqrtx - 1/sqrt(x))

    Text Solution

    |

  5. simplify : (a) sqrt(98) + sqrt(8) -2 sqrt(32) (b) (sqrt3 + sqrt5...

    Text Solution

    |

  6. Find the value of (a)(3sqrt2)/(sqrt3 + sqrt6) - (4sqrt3)/(sqrt6 + sq...

    Text Solution

    |

  7. Simplify : (a) sqrt(y+sqrt(2xy-x^(2))) + sqrt(y-sqrt(2xy-x^(2))) (b)...

    Text Solution

    |

  8. If a = sqrt5 + 2 then find the value of : a^(2) + 1/a^(2)

    Text Solution

    |

  9. If x = 1/(2-sqrt3) then find the value of (x^(3) -2x^(2) -7x+2)

    Text Solution

    |

  10. If a x = 2 + sqrt3 then evaluate (x^(3) -5x^(2) + 5x + 9)

    Text Solution

    |

  11. If a = (sqrt3-1)/(sqrt3+1) and ab=1 , then find (a^3 + b^3)

    Text Solution

    |

  12. If a = (sqrt3+1)/(sqrt3-1) and ab=1 , then find (a^(2) + ab + b^(2))

    Text Solution

    |

  13. If a = (sqrt5 +1 )/(sqrt5-1) and b = (sqrt5-1)/(sqrt5+1) then deter...

    Text Solution

    |

  14. If x = (2sqrt15)/(sqrt5 + sqrt3) then evaluate (x+sqrt3)/(x-sqrt3) +...

    Text Solution

    |

  15. If x= (sqrt5+1)/(sqrt5-1) and x = 1/y then find the value of (3x^(...

    Text Solution

    |

  16. If a = (sqrt5 +1)/(sqrt5-1) and b = (sqrt5-1)/(sqrt5+1) then find the...

    Text Solution

    |

  17. If x= 1/(2+sqrt3) and y = 1/(2-sqrt3) then evalue (1/(x+1) + 1/(y...

    Text Solution

    |

  18. Prove that sqrtx/(sqrtx +sqrty) + sqrty/(sqrtx-sqrty) + (2sqrt(xy))/(...

    Text Solution

    |

  19. Prove that 1/(1+sqrt2) + 1/(sqrt2 +sqrt3) + 1/(sqrt3+sqrt4) + 1/(sqrt4...

    Text Solution

    |