1019 past contests
Topic 31 · The circumcentre is the centre of the circumcircle of a triangle (true/false)
Topic 34 · An "auto center" is not a triangle centre (true/false)
Topic 31 · The centroid is not the centre of the circumcircle of a triangle (true/false)
Topic 35 · Diagonals bisecting the vertex angles: is it a square? (true/false)
Topic 35 · Diagonals bisecting the vertex angles: is it a rhombus? (true/false)
Topic 47 · Cartesian equation from $x=2\cos t$, $y=3\sin t$
Topic 35 · Diagonals bisecting the vertex angles: is it a kite? (true/false)
Topic 13 · Riddle: a sequence — a function on the natural numbers, arithmetic/geometric/linear/exponential
Topic 40 · Tangent and cosine are both negative in the second quadrant (true/false)
Topic 40 · Cosine positive and sine negative in the second quadrant (true/false)
Topic 40 · Sine and cosine are both negative in the third quadrant (true/false)
Topic 43 · Circle in the third quadrant touching both axes, centre $5$ units from the x-axis
Topic 39 · Solving $\cos^2x=\dfrac{1}{2}$ for $0\lt x\lt\pi$
Topic 47 · Cartesian equation from $x=2t+1$, $y=1-2t$
Topic 19 · Parabola through $(1,2)$, $(-1,4)$ and $(2,4)$ and its intercepts
Topic 14 · Evaluating $f(-5)$ given $f(3-4x)=3x+5$
Topic 14 · Evaluating $f(-1)$ given $f(2x-3)=3x-5$
Topic 14 · Evaluating $f(-4)$ given $f(3x+2)=2x+3$
Topic 30 · Area under $y=3x^2-2x$ from $x=1$ to $x=3$
Topic 30 · Area under $y=5+2x$ from $x=0$ to $x=2$