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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Application +4 | -1
In △ABC,1−tan⁡B2⋅tan⁡C2\triangle A B C, 1-\tan \frac{B}{2} \cdot \tan \frac{C}{2} is equal to
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Correct option: A
2aa+b+c\frac{2 a}{a+b+c}
Option A (2aa+b+c\frac{2 a}{a+b+c}) is correct because it is the simplified form of the given expression using trigonometric identities and triangle properties.

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