If $x=1,\ y=2$ and $z=5$, find the value of $x^{2}+y^{2}+z^{2}$.

Give: $x=1,\ y=2$ and $z=5$.

To do: To find the value of $x^{2}+y^{2}+z^{2}$.

Solution:

$x^{2}+y^{2}+z^{2}$

$=1^2+2^2+5^2$

$=1+4+25$

$=30$

Thus, the value of $x^{2}+y^{2}+z^{2}=30$.

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Updated on: 10-Oct-2022

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