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What is the value of D for solving simul...

What is the value of D for solving simultaneous equations x + y = 3 , 3x - 2y = 4 by determinant method ?

A

5

B

1

C

`-5`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
C
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-LINEAR EQUATIONS IN TWO VARIABLES-PROBLEM SET -1
  1. For simultaneous equations in x and y , if D(x) = 49 D(y) = - 63 and...

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  2. Find the value of |[5,3],[-7,-4]|

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  3. What is the value of D for solving simultaneous equations x + y = 3 , ...

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  4. ax+by=c and mx+ny=d. If an ne bm, then these simultaneous equations ha...

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  5. Complete the following table to draw the graph of 2x-6y=3

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  6. Solve the following simultaneous equations graphically : 2x + ...

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  7. Solve the simultaneous equations graphically. x - 3y = 1, 3x - 2y ...

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  8. Solve the simultaneous equations graphically. 5x - 6y + 30 = 0, 5...

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  9. Solve the following simultaneous equations graphically : 3x - y...

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  10. Solve the following simultaneous equations graphically : 3x + ...

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

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  12. Find the values of each of the following determinants : |(5,-2),(-3...

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  13. Find the values of each of the follwing determinants. |{:(3,-1),(1,...

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  14. Solve the following equations by Cramer's method. 6x - 3uy = -10, 3...

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  15. Solve the following simultaneous equations using Cramer's method : ...

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  16. Solve the following equations by Cramer's method. 3x - 2y = 5/2, 1/3...

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

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  18. Solve the following equations by Cramer's method. (x+y-8)/2 = (x+2y-...

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  19. Solve the following simultaneous equations 2/x + 2/(3y) = 1/6 , 3/...

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

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