Power & Summation Rules

ladyrae

Is this simplified?

Use the power rule and the summation rule to find f ' (x) and simplify where possible

f(x) = ((2x^3)/5) - x^2 +3/8

f ' (x) = d/dt(((2x^3)/5) - x^2 +3/8) = ((6x^2)/5) - 2x

Is this the right answer?

e(ho0n3

Looks fine from here.

Gokul43201

Except, it should be d/dx...not d/dt !

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ladyrae	Power & Summation Rules Tweet Is this simplified? Use the power rule and the summation rule to find f ' (x) and simplify where possible f(x) = ((2x^3)/5) - x^2 +3/8 f ' (x) = d/dt(((2x^3)/5) - x^2 +3/8) = ((6x^2)/5) - 2x Is this the right answer?

Gokul43201 Recognitions: Gold Member Science Advisor Staff Emeritus	Except, it should be d/dx...not d/dt !