The diagram above represents a vector. The arrow displays its direction, hence this vector can be written as \(\overrightarrow {AB}\), a, or \(\begin{pmatrix} 3 \\ 4 \end{pmatrix}\). In print ...

Circle geometry Arc length is a fraction of circumference ... Applying Pythagoras Theorem Pythagoras Theorem states that for a right-angled triangle, the square of the hypotenuse is equal to ...