By which of the following step, Independent co-ordinate can be obtaine

1.	By which of the following step, Independent co-ordinate can be obtained?
A.	L + D
B.	L D
C.	L<sup>2</sup> + D<sup>2</sup>
D.	L<sup>2</sup> D<sup>2</sup>
Answer» B. L D

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