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Question

Find the values of p and q for which the following system of linear equations has infinite number of solutions:

2x+3y=9p+qx+2p-qy=3p+q+1

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Solution

GIVEN:

To find: To determine for what value of k the system of equation has infinitely many solutions

We know that the system of equations

For infinitely many solution

Here

…… (1)

Again consider

…… (2)

Multiplying eq. (2) by 3 and subtracting from eq. (1)

Putting the value of q in eq. (2)

Hence for and the system of equation has infinitely many solution.


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