Question:
The sines of two angles of a triangle are equal to 5/13 and
Last updated: 8/4/2022
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The sines of two angles of a triangle are equal to 5/13 and 99/101. What is the cosine of the third angle? (a) 255/1313 (b) 265/1313 (c) 275/1313 (d) 770/1313