IIT JEE TRIGONOMETRIC FUNCTIONS If in a triangle `A B C ,(1+cosA)/a+(1+cosB)/b+(1_(cosC))/c` `=(...

101 views · Published 21 September 2017 · 3:55 · Indexed 25 October 2026

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This is the Solution of question from Cengage Publication Math Book Trigonometry Chapter 6 TRIGONOMETRIC FUNCTIONS written By G. Tewani. You can Find Solution of all math questions from CENGAGE BOOK on our app DOUBTNUT for free. Download Doubtnut from - https://doubtnut.app.link/sY3K7zwHxR

If in a triangle `A B C ,(1+cosA)/a+(1+cosB)/b+(1_(cosC))/c`

`=(k^2(1+cosA)(1+cosB)(1+cosC)/(a b c)`
, then `k`
is equal to
`1/(2sqrt(2)R)`
 (b) `2R`
 (c) `1/R`
 (d) none of these

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