JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Application +4 | -1

The sides of two angles of a triangle are equal to

\frac{5}{13}

and

\frac{99}{101}

. The cosine of the third angle is

View answer and explanation

Correct option: C

\frac{255}{1313}

Option C (

\frac{255}{1313}

) is correct because it is the result of applying the cosine subtraction formula after finding the sines and cosines of the given angles.

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