If a+b+c=1,ab+bc+ca=2,abc=3,find the value of1/a+bc +1/b+ca +1/c+ab
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In triangle ABC, if BC = 3 and AC = 4, then what is the length of segment CD?
A. 3
B. 15/4
C. 5
D. 16/3
E. 20/3
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