1.f(x)=x2cos(1/x)f(x)=x^2\cos(1/x)f(x)=x2cos(1/x) for x≠0x\ne0x=0, set of non-diff ptsa.{x≠0}\{x\ne0\}{x=0}b.{0,2/(2n+1)}\{0,2/(2n+1)\}{0,2/(2n+1)}c.{2/(2n+1)}\{2/(2n+1)\}{2/(2n+1)}d.[−1,1][-1,1][−1,1]Login to continueOnly logged in users canattempt or see the solution.
