Mathematics Past Questions and Answers

A chord of a circle of radius \(10 \mathrm{~cm}\) is drawn \(8 \mathrm{~cm}\) from the centre of the circle. Find the length of the chord.

Find the equation of the line which passes through \((-2,1)\) and is perpendicular to the line \(4 x-2 y+1=0\)

If a line is parallel to the line \(2 y-r x+4=0\) and perpendicular to the line \(4 y+x-28=0\), then the value of \(\mathrm{r}\) is ____________

\begin{array}{|l|l|l|l|l|l|l|}
\hline Score & 0 & 1 & 2 & 3 & 4 & 5 \\
\hline No of Student & 2 & 8 & 14 & 16 & 12 & 8 \\
\hline
\end{array}
The distribution above shows the scores of sixty (60) students in a class test. What percentage of the students scored at least 3?

The first derivative of \(y=(2+3 x)^{4}\) at \(x=-1\) is