What is a haitch?

Calculus Level 1

\[ \large{\begin{array} {l c l } \frac{d}{dx} \sin x &= &\cos x \\ \frac{d}{dx} \cos x &= &\sin x \\ \frac{d}{dx} \sinh x &= &\cosh x \\ \frac{d}{dx} \cosh x &= &\sinh x \end{array}} \]

One of the above equations is wrong, which one?

×

Problem Loading...

Note Loading...

Set Loading...