Bentuk Dasar

LHS

\begin{equation*}
\begin{split}
& \frac{1 + \sin x - \sin^2 x}{\cos x} \quad {\color {blue} 1 - \sin^2 x = \cos^2 x} \\\\
& \frac{\cos^2 x + \sin x}{\cos x} \\\\
& \frac{\cos^2 x}{\cos x} + \frac {\sin x}{\cos x} \\\\
& \cos x + \tan x \ce{->} \textbf{RHS}
\end{split}
\end{equation*}

LHS = RHS