Cosecant
= Cosecant
{title2=$\csc z$}
The cosecant is $\csc z=1/\sin z$, wherever the <sine> denominator is nonzero. The square of the <cosecant> occurs in the derivative $d(\cot z)/dz=-\csc^2z$ of the <cotangent>.
= Cosecant
{title2=$\csc z$}
The cosecant is $\csc z=1/\sin z$, wherever the <sine> denominator is nonzero. The square of the <cosecant> occurs in the derivative $d(\cot z)/dz=-\csc^2z$ of the <cotangent>.