1019 past contests
Topic 9 · Finding $n$ in $(7.5\times10^{-4})\div(0.25\times10^{-7})=3.0\times10^n$
Topic 32 · Volume of a pyramid uses $\dfrac{1}{3}$, not $\dfrac{1}{2}$, of base area times height (true/false)
Topic 31 · Area of a circle in terms of the diameter, $\dfrac{\pi d^2}{4}$ (true/false)
Topic 42 · The cosine difference formula (true/false)
Topic 32 · Surface area of a sphere $4\pi r^2$ (true/false)
Topic 27 · Differentiating $y=3x^{-3}+5x^2-7x+8$
Topic 27 · Differentiating $y=5x^3-\dfrac{6}{x^3}$
Topic 27 · Differentiating $y=5x^4-6x^2-10$
Topic 19 · Symmetric functions of the roots of $x^2+bx+c=0$ and a derived quadratic
Topic 42 · The double-angle identity for sine is not $2\sin a$ (true/false)
Topic 42 · The double-angle identity for cosine as $1-2\sin^2a$ (true/false)
Topic 8 · Expressing $\log75$, $\log\dfrac{9}{125}$ and $\log\dfrac{125}{81}$ in terms of $\log5=a$ and $\log3=b$
Topic 44 · Equation of a line through two given points
Topic 44 · Horizontal line through two points sharing a y-coordinate
Topic 44 · Vertical line through two points sharing an x-coordinate
Topic 25 · Solving $9x-17+6x-8\gt20$ after combining like terms
Topic 25 · Solving the linear inequality $17-5x\lt9x+45$
Topic 25 · Solving the linear inequality $4+5x\gt20-11x$
Topic 45 · Reflection of $a(x,y)$ in the $x$-axis maps onto $a'(x,-y)$ (true/false)
Topic 44 · A line parallel to the x-axis has slope zero (true/false)