If the function
f\left( x \right) = \left\{ {\matrix{
{{k_1}{{\left( {x - \pi } \right)}^2} - 1,} & {x \le \pi } \cr
{{k_2}\cos x,} & {x > \pi } \cr
} } \right. is
twice differentiable, then the ordered pair (k₁, k₂) is equal to :
JEE Main 2020 · 5 Sep, Morning shift · Q4196