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Write Dx for the following simultaneous ...

Write `D_x` for the following simultaneous equations `3x+4y=8,x-2y=5` a) `|(3,4),(1,-2)|` b) `|(8,4),(5,-2)|` c) `|(4,8),(-2,5)|` d) `|(3,8),(1,5)|`

A

`|(3,4),(1,-2)|`

B

`|(8,4),(5,-2)|`

C

`|(4,8),(-2,5)|`

D

`|(3,8),(1,5)|`

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CHETANA PUBLICATION-Linear equations in two variables-EXERCISE
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  2. Express the following information in mathematical form using x and y v...

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  3. Write Dx for the following simultaneous equations 3x+4y=8,x-2y=5 a) |(...

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  4. ………………..is the solution of given simultaneous equation x-y=7,x+y=11 a)...

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  5. When we consider two linear equations in two variables, such equations...

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  6. ………….is not a linear equation in two variables. a)x+7y=1 b)3x+4y-xy=0 ...

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  7. The linear equation in two variables is…………..a)3x+9=sqrt 2y+2 b)3x-4y+...

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  8. The pair of simultaneous equations from the following is…………………(1)2x+2...

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  9. Equation of X axis is……………..a)x=0 b)y=0 c)x=b d)y=a

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  10. The co-ordinates of the point of origin are……………a)(0,0) b)(1,0) c)(0,1...

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  11. If the value of the determinant |(m,-2),(2,1)| is 7, then value of m i...

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  12. x and y are the dimensions of a rectangle and its perimeter is 64. Thi...

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  13. The value of determinant |(5,2),(7,4)| is…………..a)6 b)-6 c)34 d)-34

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  14. If Dx=-18 and D=3 are values of determinant for certain simultaneous e...

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  15. Find m, if value of determinant |(m,2),(-5,7)| is 31. a)14 b)3 c)4 d)1...

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  16. If (a,3) lies on graph of equation 5x+2y=-4 then a=…………….a)2 b)-2 c)2/...

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  17. The simulataneous equations 3x+5y=16 and 4x-y=6 have……………a)unique solu...

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  18. If simultaenous equations do not have any solution,then their graph wi...

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  19. By Cramer's rule,the value of x is…………a)Dx/D b)Dy/D c) D/Dx d)D/Dy

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  20. Solve the following equations. 3x-y=2,5x-2y=1

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