SubArea: Analyzing function behaviorLevel: AProject ID: 2010017803Source Problem: 1003261906Accepted: 0Clonable: 1Easy: 0Determine the values of a and b (a, b∈R) such that the function f(x)=ax3−2bx+2 has a local extremum of 6 at x=−1.a=2, b=3a=−2, b=3a=−2, b=−3a=2, b=−3