IIT JEE TRIGONOMETRIC FUNCTIONS In a triangle, if the angles `A , B ,a n dC` are in A.P. show tha...

71 views · Published 21 September 2017 · 3:31 · Indexed 20 September 2026

Channel: Doubtnut · 2017 · Education

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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/MwuKxUNHxR

In a triangle, if the angles `A , B ,a n dC`
are in A.P. show that `2cos1/2(A-C)=(a+c)/(sqrt(a^2-a c+c^2))`

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