Posted by Terri on Thursday, September 8, 2011 at 7:28am.
What is the fourth derivative of this fifth degree polynomial? 5x^5+2x^4+7x^3+x^2+x+42?

calculus  Reiny, Thursday, September 8, 2011 at 8:55am
first deriv. : 25x^4 + 8x^3 + 21x^2 + 2x + 1
2nd deriv. : 100x^3 + 24x^2 + 42x + 2
3rd ...
4th ...
If you know the pattern for taking derivatives of simple terms like those above, you should have no difficulty finishing the question.