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2-5-49-3-4-36-4-5-81-5-5-




Question Number 181572 by amin96 last updated on 26/Nov/22
  2 𝚫 5=49  3 𝚫 4=36  4 𝚫 5=81  5 𝚫 5=?
$$ \\ $$$$\mathrm{2}\:\boldsymbol{\Delta}\:\mathrm{5}=\mathrm{49} \\ $$$$\mathrm{3}\:\boldsymbol{\Delta}\:\mathrm{4}=\mathrm{36} \\ $$$$\mathrm{4}\:\boldsymbol{\Delta}\:\mathrm{5}=\mathrm{81} \\ $$$$\mathrm{5}\:\boldsymbol{\Delta}\:\mathrm{5}=? \\ $$$$ \\ $$

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