MathematicsMedium175×since 2002Q2642If S₁ and S₂ are respectively the sets of local minimum and local maximum points of the function, ƒ(x) = 9x⁴ + 12x³ – 36x² + 25, x ∈\in∈ R, then :AS₁ = {–1}; S₂ = {0, 2}BS₁ = {–2}; S₂ = {0, 1}CS₁ = {–2, 0}; S₂ = {1}DS₁ = {–2, 1}; S₂ = {0}Check answerSkip