How do you find the inflection points of #f(x)=x^5-30x^3#?

Question

How do you find the inflection points of #f(x)=x^5-30x^3#?

1 Answer

Impact of this question

1925 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-08-31T06:04:32

0 and -3

Explanation:

#df(x)=5x^4-90x^2#
#d(df(x))=20x^3-180x#
#20x^3-180x=0#
#x=0; x=3; x=-3#
#g(x)=d(d(df(x)))=60x^2-180#
#g(0)=-180; g(3)=0; g(-3)=1080#
3 is not infection point.

Science

Math

Humanities

... and beyond

How do you find the inflection points of #f(x)=x^5-30x^3#?

1 Answer

Explanation:

Related questions

Impact of this question