I am using draftwatermark package in the below code and it is showing some error.
Code: Select all
\documentclass[10pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{draftwatermark}
\SetWatermarkText{$MATHSTUDY^{\circledR}$}
\begin{document}
\begin{enumerate}
\item Find the integral with two methods : $\frac{1}{2}\int^\pi_0\sin^6\alpha \,d\alpha$
\item The sum of the series: \[\sum_{i=0}^\infty \frac{3(-1)^{n+1}}{2^n}\] is
\begin{enumerate}
\item $-2$
\item $-3$
\item $2$
\item $3$
\item none of these
\end{enumerate}
\end{enumerate}
\end{document}[*]
Thanks.
Sachin Sharmaa