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Two systems of rectangular axes have the...

Two systems of rectangular axes have the same origin. If plane cut the intercepts a,b,c on co-ordinate axes for 1st system aned intercepts a', b'', c' on 2nd system then pick the correct alternatives

A

`(1)/( a ^(2)) + (1)/( b ^(2) ) + (1 )/( c ^(2)) - (1)/(a^('2)) - (1)/(b^('2)) - (1)/(c ^('2)) =0`

B

`(1)/( a ^(2)) + (1)/( b ^(2) ) + (1 )/( c ^(2)) + (1)/(a^('2)) + (1)/(b^('2)) + (1)/(c ^('2)) =0`

C

`x/1 +y/1 = (z)/(r ^(2))`

D

`(1)/( a ^(2)) - (1)/( b ^(2) ) - (1 )/( c ^(2)) + (1)/(a^('2)) - (1)/(b^('2)) - (1)/(c ^('2)) =0`

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The correct Answer is:
A
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