Tuesday, 17 August 2021

The number of different ways to colour the vertices of a square PQRS using one or more colours from the set {Red,Blue,Green,Yellow}, such that no two adjacent vertices have the same colour is
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Define f:R→R by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...