Math, asked by khushkhan8995, 6 months ago

Find the complete integral of p-q=0

Answers

Answered by pulakmath007
22

SOLUTION

TO DETERMINE

The complete integral of p - q = 0

EVALUATION

Here the given equation is

 \sf{p - q = 0} \:  \:  \: ........(1)

This equation is of the form f(p, q) = 0

So the solution is given by

 \sf{z = ax + by + c} \:  \:  \: ......(2)

Where a, b, c are constants

Now in order to get the complete integral we have to eliminate any one of the arbitrary constants.

Differentiating partially both sides of equation (2) with respect to x we get

 \displaystyle \sf{ \frac{ \partial z}{ \partial x} = p = a  \: }

Again Differentiating partially both sides of Equation (2) with respect to y we get

 \displaystyle \sf{ \frac{ \partial z}{ \partial y} = q = b  \: }

Putting these values in Equation (1) we get

 \sf{a - b = 0 \: }

 \implies \sf{a = b}

Hence the required complete integral is

 \sf{ z = ax + ay + c\: }

Where a and c are arbitrary constants

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