A problem by OJAS JAIN
Level
pending
If \(a=b-c, b=c-d, c=d-a\) and \(abcd \neq 0\), find the value of
\[ \frac{a}{b}+\frac{b}{c}+\frac{c}{d}+\frac{d}{a}.\]
by
OJAS JAIN