NECO Mathematics Past Questions & Answers - Page 26

If sin θ = $\frac{\sqrt{3}}{2}$ and 0 < θ < 180°, what is cos θ ?

>What are the factors of 2x$^2$ - xy - 3y$^2$ ?

A quadratic equation with roots -1$\frac{1}{2}$ and $\frac{1}{4}$ is

One bag contains 4 white balls and 2 black balls. Another bag contains 3 white balls and 5 black balls, if one ball is drawn from each bag, what is the probability that both are white?

A wire was shaped to form a square of area 81cm$^2$. An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?