Mathematics Past Questions and Answers

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

The minimum value of \(f(x)=x^{2}-4 x+5\) in the interval \([1,-1]\) is

The table BELOW shows the marks scored by a group of students in a class test. If the mean score is \(3.4\), find \(x\).<br/>\begin{array}{|l|l|l|l|l|l|}<br/>\hline Score & 1 & 2 & 3 & 5 & 6 \\<br/>\hline Frequency & 3 & 6 & 7 & \(x\) & 4 \\<br/>\hline<br/>\end{array}

A company Is to select three different handset phones from five different types of Nokia brand and two different types of Samsung brand. In how many ways can the company choose the handsets, 50 as to include at least one Samsung brand?

Simplify \(2^{5} / 12-1^{7} / 8 \times 6 / 5\)