If f(x) = \left\{ {\matrix{
{{1 \over {|x|}}} & {;\,|x|\, \ge 1} \cr
{a{x^2} + b} & {;\,|x|\, < 1} \cr
} } \right. is differentiable at every point of the domain, then the values of a and b are respectively :
JEE Main 2021 · 18 Mar, Morning shift · Q4202