A) 5
B) \[\sqrt{13}\]
C) \[2\sqrt{5}\]
D) \[5\sqrt{2}\]
E) none of these
Correct Answer: A
Solution :
Distance of a point A (2, 3, 4) from\[x-\]axis \[=\sqrt{{{3}^{2}}+{{4}^{2}}}=5\]
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