Here is a MWE:
{
\textbf{EXACT VALUES OF TRIGONOMETRICAL RATIOS}\\\\
\renewcommand{\arraystretch}{1.5}
\setlength{\extrarowheight}{1.5pt}
\begin{tabular}{|c|c|c|c|c|}
\hline
\multicolumn{2}{|c|}{Angle ($\theta$)} & & & \\
Degrees & Radians & $\sin{\theta}$ & $\cos{\theta}$ & $\tan{\theta}$ \\
\hline
$0^{\circ}$ & 0 & 0 & 1 & 0 \\
\hline
$30^{\circ}$ & $\frac{\pi}{6}$ & $\frac{1}{2}$ & $\frac{\sqrt{3}}{2}$ & $\frac{1}{\sqrt{3}}$ \\
\hline
$45^{\circ}$ & $\frac{\pi}{4}$ & $\frac{1}{\sqrt{2}}$ & $\frac{1}{\sqrt{2}}$ & 1 \\
\hline
$60^{\circ}$ & $\frac{\pi}{3}$ & $\frac{\sqrt{3}}{2}$ & $\frac{1}{2}$ & $\sqrt{3}$ \\
\hline
$90^{\circ}$ & $\frac{\pi}{2}$ & 1 & 0 & undefined \\
\hline
\end{tabular}
}
array
. – user156344 Apr 15 at 7:46\sin{\theta}
,\cos{\theta}
, and\tan{\theta}
is somewhat misleading, as the macros\sin
,\cos
, and\tan
do not take arguments. It's better, and certainly cleaner, to write\sin\theta
,\cos\theta
, and\tan\theta
. – Mico Apr 15 at 8:27