Kcet
Sets And Relations
KCET 2019
MCQ+1 / -02019
On the set of positive rational, a binary operation * is defined by \(a * b=\frac{2 a b}{5}\). If \(2 * x=3^{-1}\), then \(x=\)
Kcet
KCET 2019
On the set of positive rational, a binary operation * is defined by \(a * b=\frac{2 a b}{5}\). If \(2 * x=3^{-1}\), then \(x=\)