`tan x gt cot x`
`implies" "`values of `tanx` are more than the values of `cotx`
`implies" "`values of `x` for which the graph of `y=tanx` is above the graph of `y=cotx` From the graph, it is clear that `x in (pi//4, pi//2)uu(3pi//4,pi)uu(5pi//4,3pi//2)uu(7pi//4,2pi).`