Calculus Test-Fall

_____9. y = cot(2x +1) 10. The formula for the volume of a cone is V = rh. Find the rate of change of the . volume if dr/dt is 2 inches per minute and h = 3r when r = 6 inches . ... The derivative of a function of f at x is given by = lim provided the limit exists. 13. Use this definition to find the derivative of f(x) = x+ x . (You must show ... ................
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