Home
Class 8
MATHS
If sqrt((x-1)(y+2))=7 , x and y being ...

If `sqrt((x-1)(y+2))=7` , `x` and `y` being positive whole numbers, then the values of `x` and `y` respectively are (a) 8, 5 (b) 15, 12 (c) 22, 19 (d) None of these

A

8,5

B

15,12

C

22,19

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SQUARE ROOTS AND CUBE ROOTS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET-4|10 Videos

  • SOME APPLICATIONS OF TRIGONOMETRY

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test - 6 |20 Videos

  • SURDS

    S CHAND IIT JEE FOUNDATION|Exercise UNIT TEST -1 |15 Videos

Similar Questions

Explore conceptually related problems

If sqrt((x-1)(y+2))=7,x and y being positive whole numbers,then the values of x and y respectively are (a) 8,5 (b) 15,12 (c) 2219 (d) None of these

If (x+y)=3 , x y=2 , then what is the value of x^3+y^3 ? (a) 6 (b) 7 (c) 8 (d) 9 (e) None of these

Knowledge Check

  • If sqrt((x-1)(y+2))=7 , x and y being positive whole numbers then the values of x and y are respectively

    A
    8,5
    B
    15,12
    C
    22,19
    D
    6,8

  • If (x-y,x+y)=(2,8), then the values of x and y are respectively.

    A
    5,3
    B
    7,5
    C
    4,2
    D
    10,8

  • If x+sqrt(5)=5+sqrt(y) and x,y are positive integers , then the value of (sqrt(x)+y)/(x+sqrt(y)) is

    A
    `1`
    B
    `2`
    C
    `sqrt(5)`
    D
    `5`

    • Similar Questions

    Explore conceptually related problems

    If x, y are positive real numbers, such that x^(2)+y^(2)=8 .Then the greatest value of x+y is

    If 1.5x=0.04y, then the value of ((y-x)/(y+x)) isi (730)/(77) (b) (73)/(77) (c) (7.3)/(77) (d) None of these

    If (x+y-8)/2 = (x+2y-14)/3 = (3x+y-12)/11 , then find the values of x and y, respectively.

    If a,b,c in G.P. x,y be the A.M.\'s between a,b and b,c respectively then (a/x+c/y)(b/x+b/y)= (A) 2 (B) -4 (C) 4 (D) none of these

    If cot(x+y)=1//sqrt(3), cot(x-y)=sqrt(3) then what are the smallest positive values of x and y respectively ?

    Home
    Profile