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Question Number 82101 by legocole last updated on 18/Feb/20
$${Make}\:\mathrm{2}\:\mathrm{3}×\mathrm{3}\:{matrices}\:{i}\:{and}\:{j} \\ $$$${such}\:{that} \\ $$$${i}^{\mathrm{2}} ={j} \\ $$$${j}^{\mathrm{2}} ={i} \\ $$$${ij}=−\mathrm{1} \\ $$
Commented by Kunal12588 last updated on 18/Feb/20
$${what}\:{do}\:{you}\:{mean}\:{from}\:{ij}=−\mathrm{1} \\ $$$${multiplying}\:{two}\:\mathrm{3}×\mathrm{3}\:{matrix}\:{will}\:{give}\:{a} \\ $$$$\mathrm{3}×\mathrm{3}\:{matrix} \\ $$
Commented by jagoll last updated on 18/Feb/20
$${i}\:{don}'{t}\:{understand}\:{this}\:{problem} \\ $$