JAMB Mathematics Past Questions & Answers - Page 87

An arc of the length 16$\pi$cm subtends an angle of 80^o at the centre of the circle. Find the radius of the circle.

Evaluate $\int\limits_0^\frac{\pi}{2}$ sin xdx

An arc subtends an angle of 30^o at the centre of a circle radius 12cm. Calculate the length of the arc.

Evaluate $\frac{0.8 \times 0.43 \times 0.031}{0.05 \times 0.72 \times 0.021}$. Correct to four significant figures.

Find $\frac{dy}{dx}$, if y = $\frac{2}{3}$ x$^3$ - $\frac{4}{x}$