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A +B +C =180
tan(A+B/2) = tan (180-C/2) = tan(90-<C/2>)
which is equal to cot C/2
pawanjhahaz1:
bhai I said cotc
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Answer:
Step-by-step explanation:
A +B +C =180
tan(A+B/2) = tan (180-C/2) = tan(90-<C/2>)
which is equal to cot C/2
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