The maximum and minimum values of F (x) = 2x4-3x2 + 1 on [12,2] are______ .

The maximum and minimum values of F (x) = 2x4-3x2 + 1 on [12,2] are______ .

∵ f (x) = 2x4-3x2 + 1, X ∈ [12,2] ∵ f ′ (x) = 8x3-6x = 0, the solution is x = 0 or x = 32 or x = - 32 (rounding off), f ′ (x) < 0, f (x) is a decreasing function; F ′ (x) > 0, f (x) is an increasing function; f (x) = 2x4-3x2 + 1, f ′ (x) > 0, f (x) is an increasing function; f (x) = 2x4-3x2 + 1, f (x) =