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Find the value of the determinant |{:(4,...

Find the value of the determinant `|{:(4,3),(2,7):}|`.

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CHETAN PUBLICATION-LINEAR EQUATIONS IN TWO VARIABLES -Problem Set - 1
  1. Solve 3x-y-2=0 , 2x+y-8=0 by method of cross multiplication .

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  2. 3x+y=10,x-y=2

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  3. Find the value of the determinant |{:(4,3),(2,7):}|.

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  4. |{:(" "5,-2),(-3," "1):}|

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  5. |{:(3,-1),(1," "4):}|

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  6. 6x-3y=-10,3x+5y-8=0

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  7. Solve the following equations by Cramer's method. 4m - 2n =-4, 4m + ...

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  8. 3x-2y=(5)/(2),(1)/(3)x+3y=(-4)/(3)

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  9. Solve the following equations by Cramer's method. 7x + 3y = 15, 12y ...

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  10. Solve for x and y (2)/(x)+(2)/(3y)=(1)/(6),(3)/(x)+(2)/(y)=0

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  11. Solve the following simultaneous equations: (7)/(2x+1)+(13)/(y+2)=27...

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  12. (148)/(x)+(231)/(y)=(527)/(xy),(231)/(x)+(148)/(y)=(610)/(xy)

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  13. Solve the following system of equations: (7x-2y)/(x y)=5,\ \ \ (8x+...

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  14. (1)/(2(3x+4y))=(1)/(5(2x-3y))=(1)/(4),

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  15. A two digit number and the number with digits interchanged add up to 1...

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  16. Kantabai bought 1(1)/(2) kg tea and 5 kg sugar from a shop. She paid...

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  17. Places A and B are 30 km apart and they are on a straight road. Humid ...

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  18. To find number of notes that Anushka had complete the following activi...

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  19. Sum of the present ages of Manish and Savita is 31 . Manish's age 3 ye...

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  20. In a factory the ratio of salary of skilled and unskilled workers is ...

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