Find the direction cosines of the line passing through two points (4, – McqOptions

MCQOPTIONS

1.	Find the direction cosines of the line passing through two points (4, -5, -6) and (-1, 2, 8).
A.	\(\frac{5}{270},\frac{7}{\sqrt{270}},\frac{14}{\sqrt{270}}\)
B.	–\(\frac{7}{\sqrt{270}}, \frac{7}{\sqrt{270}},\frac{7}{\sqrt{270}}\)
C.	–\(\frac{5}{\sqrt{270}}, \frac{7}{\sqrt{270}},\frac{14}{\sqrt{270}}\)
D.	–\(\frac{5}{\sqrt{20}}, \frac{7}{\sqrt{720}},\frac{14}{\sqrt{270}}\)
Answer» D. –\(\frac{5}{\sqrt{20}}, \frac{7}{\sqrt{720}},\frac{14}{\sqrt{270}}\)

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