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Solve for x and y by cross- multiplicati...

Solve for `x` and `y` by cross- multiplication : ` px+qy=p-q , qx-py=p+q`

A

` x = 1 , y = - 1 `

B

` x = 2 , y = - 2 `

C

` x = 3 , y = - 3 `

D

` x = 4 , y = - 4 `

Text Solution

Verified by Experts

The correct Answer is:
A
Multiply (i) by p and (ii) by q and add.
` x = 1 , y = - 1 `
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