help

\(\frac{6csc(20)}{13csc(0)-5}=0\)

Let's simplify  \(6csc(20)=17.5\)to 3 significant figures

\(csc(0-5)=csc(-5)\)

\(13csc(-5)=-149\)to 3 significant figures

\(\frac{17.5}{-149}\neq 0 \)Maybe if you wrote the whole decimal out it might equal zero but if we're simplifiying to 3 significant figures, it does not equal zero.