PROVE THAT - tan A+B/2=cot C/2
PROVE THAT - tan A+B/2=cot C/2
Meghraj Talan , 13 Years ago
Grade
Trigonometry> PERIODIC FUNCTIONS...
1 Answersruchi yadav
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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