Question
Prove that cot²A(secA-1) = Cos A
Answers
Steve
sorry - ain't so. Check for typos
However, cot(sec^-1(A)) = √(A^2-1)
cot^2(sec^-1(A)) = A^2-1
I think I can see how the question was mangled. Can you?
However, cot(sec^-1(A)) = √(A^2-1)
cot^2(sec^-1(A)) = A^2-1
I think I can see how the question was mangled. Can you?