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Grade 12th passTrigonometry

if the circum radius of a triangle is constant ...then prove that
da/cosA + db/cosB + dc/cosC =0

Profile image of ???? ??????
10 Years agoGrade 12th pass
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1 Answer

Profile image of Saurabh Koranglekar
6 Years ago
Dear student

The question is incomplete
Kindly mention the meaning of symbols used

Regards

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