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In a triangle ABC, if the sides a,b,c, a...

In a triangle ABC, if the sides a,b,c, are roots of `x^3-11 x^2+38 x-40=0,` then find the value of `(cosA)/a+(cosB)/b+(cosC)/c`

A

`(61)/(144)`

B

`(61)/(72)`

C

`(169)/(144)`

D

`(59)/(144)`

Text Solution

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The correct Answer is:
A
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