A) \[\frac{2}{21},\frac{-1}{7},\frac{2}{7}\]
B) \[\frac{2}{7},\frac{-3}{7},\frac{6}{7}\]
C) \[\frac{2}{7},\frac{3}{7},\frac{6}{7}\]
D) None of these
Correct Answer: B
Solution :
D.c.'s are \[\frac{2}{\sqrt{{{2}^{2}}+{{(-3)}^{2}}+{{6}^{2}}}},\,\,\frac{-3}{\sqrt{49}}\text{and}\,\frac{6}{\sqrt{49}}\] or\[\frac{2}{7},\,\frac{-3}{7},\,\,\frac{6}{7}\].
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