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CBSE Class 12-science Answered

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Asked by | 22 Jun, 2009, 12:18: AM
answered-by-expert Expert Answer

the sum of squares of the direction cosines must be equal to 1.(refer to the formula)

So as long as this holds, it is possible..but if the sum does not come equal to 1, then it's not possible..

Answered by | 22 Jun, 2009, 01:02: AM

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