JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 26
question_answer
In a triangle ABC, if sides a, b and c are roots of the equation \[{{x}^{3}}-11{{x}^{2}}+38x-40=0,\] then \[\frac{\cos A}{a}+\frac{\cos B}{b}+\frac{\cos C}{c}\]is equal to ____________.