In △ ABC , if a : b : c = 4 : 5 : 6 , then cos A : cos B : cos C =, 12 : 9 : 2, 6 : 5 : 4, 7 : 8 : 9, 14 : 11 : 6

In △ ABC , if a : b : c = 4 : 5 : 6 , then cos A : cos B : cos C =

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In $\triangle \mathrm{ABC}$, if $a: b: c=4: 5: 6$, then $\cos \mathrm{A}: \cos \mathrm{B}: \cos \mathrm{C}=$

MathematicsProperties of TrianglesAP EAMCETAP EAMCET 2017 (26 Apr Shift 2)

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The correct answer is: $12: 9: 2$

No solution. Refer to answer key.

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