Question and Answers Forum

All Questions      Topic List

Algebra Questions

Previous in All Question      Next in All Question      

Previous in Algebra      Next in Algebra      

Question Number 133612 by benjo_mathlover last updated on 23/Feb/21

$$\mathrm{If}\{\begin{array}{l}\mathrm{x}+\mathrm{y}+2\mathrm{z}=\mathrm{k}\\ \mathrm{x}+2\mathrm{y}+\mathrm{z}=\mathrm{k}\\ 2\mathrm{x}+\mathrm{y}+\mathrm{z}=\mathrm{k}\end{array};\mathrm{k}\ne 0$$$$\mathrm{then}{\mathrm{x}}^2+{\mathrm{y}}^2+{\mathrm{z}}^2=?$$$$$$

Commented by mr W last updated on 23/Feb/21

$$x=y=z=\frac{k}{4}$$$$x^2+y^2+z^2=\frac{3k^2}{16}$$

Commented by mr W last updated on 23/Feb/21

$$whyshouldk\ne 0?$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com