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Find the direction cosines of the vector 4i3j....

Find the direction cosines of the vector 4i3j.

A.

910,2710

B.

1727,1727

C.

45,35

D.

47,37

Correct answer is C

Given V=xi+yj, the direction cosines are x|V|,y|V|.

|4i3j|=42+(3)2=25=5

Direction cosines = 45,35.