Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
<Ryan>
Lv 6
<Ryan> asked in Science & MathematicsMathematics · 7 years ago

Derivative of?

f(x) = 1 - x^4

Would it be -4x^3 or positive 4x^3?

Update:

Thank you!

3 Answers

Relevance
  • Rogue
    Lv 7
    7 years ago

    f(x) = 1 − x^4

    => f′(x) = d/dx(1) − d/dx(x^4)

    => f′(x) = 0 − 4x^3

    => f′(x) = -4x^3

  • Mohamed Athaullah
    Lv 6
    7 years ago

    -4x^3 is correct

  • Andy
    7 years ago

    it would be -4x^3

Still have questions? Get your answers by asking now.