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...; (f(x1)+f(x2))/2, then f(x) is said to be concave upward on [a, b]. Refer to your example, a=1/3, b=1. f(x)=x^3-2x^2+x...

Take upward quantities to be positive. Take g = 10 m/s2 u = 0 m/s a = 4 m...

Take upward be positive. Initial vertical speed, uv = 42sin30* = 21 ms-1...

Taking upward direction as positive, we have, at any time: Net force acting on the mass...

set y = 2x^2 + 7x + 4 it is an opening- upward parabola with x-int -2.781 and -0.719 so 2x^2 + 7x + 4 < 0 => -2...

...slope, 畫成downward sloping to the right. 將f &#39; (x) 既圖既正slope, 畫成 upward sloping to the right. 因為y值冇given,,所以個形岩就得! 要畫f...

A ball is thrown vertically upward from the ground, Its displacement at time t is given by...

Set the ground floor as 0, upward as positive and downward as negative. Lift A goes up 5 floors...