UPSC CDS 2 2021 Math Paper

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Question : 44 of 100

Marks: +1, -0

If A,B and C are int4rior angles of a triangle ABC, then what is
‌tan(‌

B+C

2

)+sin(‌

B+C

2

)
‌‌−cot(‌

A

2

)−cos(‌

A

2

)‌ equal to? ‌

0
‌
1
2
sin(‌
A+B+C
4
)
tan(‌
A+B+C
4
)

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