10.

f(x) = 3x+x^3, x is bigger than 0

- Differentiate to find f ‘ (x)

Given that f ‘ (x) = 15

- Find the values of x

11) The curve c has an equation Y = kx^3 -x^2 +x-5 where k is a constant find dy/dx

10.

f(x) = 3x+x^3, x is bigger than 0

- Differentiate to find f ‘ (x)

Given that f ‘ (x) = 15

- Find the values of x

11) The curve c has an equation Y = kx^3 -x^2 +x-5 where k is a constant find dy/dx

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