问答题
y=x4-8x2,-1≤x≤3
问答题y=x4-8x2,-1≤x≤3
y=2x3-3x2-80,-1≤x≤4
问答题y=2x3-3x2-80,-1≤x≤4
y=e-(x+12)
问答题y=e-(x+12)