Question
If $1^3+2^3+3^3+\ldots+k^3=44100$ then find $1+2+3+\ldots+k$

Answer

$\begin{aligned} & \text { If } 1^3+2^3+3^3+\ldots+k^3=44100 \\ & 1+2+3+\ldots+k=\sqrt{44100} \\ & =210\end{aligned}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free