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Let P(-7,1-5) be a point on a plane an...

Let P(-7,1-5) be a point on a plane and let O be the origin If OP is normal to the plane , then the equation on the plane is a)`7x-y+5z+75=0` b)`7x+y-5z+73=0` c)`7x+y+5z+73=0` d)`7x-y-5x+75=0`

A

`7x-y+5z+75=0`

B

`7x+y-5z+73=0`

C

`7x+y+5z+73=0`

D

`7x-y-5x+75=0`

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The correct Answer is:
A
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