Question

Identify the variation as direct, inverse, joint, or combined. R=cl/r^2

Answer 1

COMBINED

Explanation:

Answer 2

`\bf \qquad \qquad \textit{combined proportional variation} \\\\ \begin{array}{llll} \textit{\underline{y} varies directly with \underline{x}}\\ \textit{and inversely with \underline{z}} \end{array}\implies y=\cfrac{kx}{z}\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array}\\\\ -------------------------------`


`\bf R=\cfrac{cl}{r^2}\impliedby \begin{array}{llll} \textit{\underline{R} varies directly with with \underline{c} and \underline{l}}\\ \textit{and inversely with }\underline{r^2} \end{array}`