(C) The given equations are $5x - 4y - 1 = 0$ and $10x - 8y - 2 = 0$.Comparing these with the standard form $a_{1}x + b_{1}y + c_{1} = 0$ and $a_{2}x

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(C) The given equations are $5x - 4y - 1 = 0$ and $10x - 8y - 2 = 0$.Comparing these with the standard form $a_{1}x + b_{1}y + c_{1} = 0$ and $a_{2}x + b_{2}y + c_{2} = 0$,we get:$a_{1} = 5, b_{1} = -4$$a_{2} = 10, b_{2} = -8$Now,calculating the value of $a_{1}b_{2} - a_{2}b_{1}$:$a_{1}b_{2} - a_{2}b_{1} = (5)(-8) - (10)(-4)$$= -40 - (-40)$$= -40 + 40$$= 0$

Class 10 Mathematics Pair of Linear Equations in Two Variables Mix Examples - Pair of Linear Equations in Two Variables

Medium

For a pair of equations $5x - 4y = 1$ and $10x = 8y + 2$,in usual notations $a_{1}b_{2} - a_{2}b_{1} = \dots$

A
$40$
B
$-40$
C
$0$
D
$-80$

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Pair of Linear Equations in Two Variables

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Mix Examples - Pair of Linear Equations in Two Variables

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For a pair of equations $5x - 4y = 1$ and $10x = 8y + 2$,in usual notations $a_{1}b_{2} - a_{2}b_{1} = \dots$

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For the pair of equations $\frac{2}{x} + \frac{3}{y} = 3$ and $\frac{3}{x} + \frac{2}{y} = 7$,find the value of $\frac{3}{x} + \frac{3}{y}$.

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