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5x - 7 y - 5 =0 , 2x + ky - 1 =0...

` 5x - 7 y - 5 =0 , 2x + ky - 1 =0 `

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The correct Answer is:
` k ne = (-14)/(5)`
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5x - y - 7 = 0 , x - y + 1 = 0

Find the value of k for which the system of equations " " 5x - 3y = 0 , 2x + ky = 0 has a nonzero solution.

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The equation of straight line belonging to both the families of lines (x-y+1)+lambda_1(2x-y-2)=0 and (5x+3y-2)+lambda_2(3x-y-4)=0 where lambda_1, lambda_2 are arbitrary numbers is (A) 5x -2y -7=0 (B) 2x+ 5y - 7= 0 (C) 5x + 2y -7 =0 (D) 2x- 5y- 7= 0

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2x - ky +7=0 and 6x - 12 y +15 =0 has no solution for

RS AGGARWAL-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3D
  1. {:(2x - 3y - 5 = 0),(kx - 6y - 8 = 0):}

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  2. {:(x - ky = 2),(3x + 2y =-5):}

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  3. 5x - 7 y - 5 =0 , 2x + ky - 1 =0

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  4. Find the value of k for which the following system of equations has...

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  5. Find the value of k for which the following system of equations has...

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  6. {:(kx + 3y = k - 3),(12x + ky = k):}

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  7. Show that the system of equations. " " 2 x - 3y = ...

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  8. Show that the system of equations " " 6x + 5y = 11, ...

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  9. For what value of k does the system of equations " " kx ...

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  10. For what value of k , will the system of equations x+2y=5,\ \ \ \ 3...

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  11. For what value of k does the system of equations " ...

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  12. For what value of k does the system of linear equations 2x+3y=7 ...

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  13. {:(2x + (k - 2)y = k),(6x + (2k - 1) y = 2k + 5):}

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  14. Find the value of k for which following system of equations have in...

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  15. Find the value of k for infinite solutions: 5x + 2y = 2k, 2 ...

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  16. ( k - 1 ) x - y = 5, (k + 1 ) x + ( 1 - k ) y = ( 3k + 1 )

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  17. {:((k - 3)x + 3y = k),(kx + ky = 12):}

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  18. (a - 1) x + 3y = 2, 6x + (1 - 2b) y =6.

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  19. {:((2a - 1)x + 3y - 5 = 0),(3x + (b - 1) y - 2 = 0):}

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  20. If 2x - 3y = 7 and (a+b)x- (a+b-3)y = 4a + b represent coincident lin...

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