A) \[\sqrt{\frac{110}{2109}}\]
B) \[\sqrt{\frac{2109}{110}}\]
C) \[\frac{2109}{110}\]
D) 54
Correct Answer: B
Solution :
Required distance \[=\sqrt{{{(5-1)}^{2}}+{{(4-0)}^{2}}+{{(-1-0)}^{2}}-{{\left[ \frac{(5-1)2+(4-0)9+(-1-0)5}{\sqrt{4+81+25}} \right]}^{2}}}\] \[\sqrt{33-\frac{39\times 39}{110}}=\sqrt{\frac{2109}{110}}\].You need to login to perform this action.
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