Question

What is the expanded form of the expression 3 sigma i^3 i=0

Answer 1

`\bf \sum\limits_(i=1)^(n)~i^3\implies \left( \cfrac{n(n+1)}{2} \right)^2\\\\ -------------------------------\\\\ \sum\limits_(i=0)^(3)~i^3\implies \sum\limits_(i=1)^(4)~i^3\implies \left( \cfrac{4(4+1)}{2} \right)^2\implies 100`