A=170 degree then prove that tan(A/2)=(-1-secA)/tanA
A=170 degree then prove that tan(A/2)=(-1-secA)/tanA
apu dey , 5 Years ago
Grade 12th pass
Trigonometry> A=170 degree then prove that tan(A/2)=(-1...
1 AnswersVikas TU
Last Activity: 5 Years ago
Dear student
tan(A/2) = (-1- Sec A )/tanA
=> -CotA – CosecA = tanA/2
170 = pie – 10 degree
put the value of A
LHS = RHS
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