04/08/21

Calculus question

The product of two positive numbers is 784. What is the minimum value of theirsum?

04/08/21

x=t−lnt, y=t+lnt, t>0.

(a)Find dy/ dx (b) Find d^2y/dx^2 (c) For what value of t is the curve concave up?

04/05/21

if p(x)=3x^2-2x+5 find 2[p(x+4)]

03/15/21

given f(x)=2sec^2(x) , write the equation of the line tangent to y=f(x) when x=7pi/4

HAS TO BE IN y-y1=m(x-x1) FORM

03/15/21

When does a point of inflection occurs?

When the value of the slope of the tangent to a function is (locally) at a maximum or minimum value, a point of inflection occurs. is that true or false?

03/14/21

Let f(t) be the weight (in grams) of a solid sitting in a beaker of water

Let f(t) be the weight (in grams) of a solid sitting in a beaker of water. Suppose that the solid dissolves in such a way that the rate of change (in grams/minute) of the weight of the solid at any... more

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