Question 4.11: Show that R = √x² + y² + z²...
Show that
R={\sqrt{x^{2}+y^{2}+z^{2}}}Step-by-Step
From Figure 4.28
x² +y² = OQ²
From ΔOPQ
OP² = OQ² + PQ²
But OP = R and PQ = z, so
R² = x² +y² +z²
and so
R={\sqrt{x^{2}+y^{2}+z^{2}}}
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