The sines of two angles of a triangle are equal to 5 13 99 101 . The cosine of the third…
Mathematics · JEE Main · NTA Exams — Trigonometry
The sines of two angles of a triangle are equal to \(\frac{5}{13} \& \frac{99}{101}\). The cosine of the third angle can be :
(Assume that sum of all angles in a triangle are supplementary)
(Assume that sum of all angles in a triangle are supplementary)
- \(\frac{245}{1313}\)
- \(\frac{255}{1313}\)
- \(\frac{735}{1313}\)
- \(\frac{765}{1313}\)
Answer
(B) 255 1313
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