For the function f(x)=12x^5-5x^4, how many of the inflection points of the function are also extrema?
a. 3
b. 2
c. 1
d.None



Answer :

The only points that coincide are at x = 0,only 1 of the inflection points is also an extremum.

What is  inflection points ?

An inflection point, point of inflection, flex, or inflection is a point on a smooth plane curve where the curvature changes sign in differential calculus and differential geometry.

First find the extrema (zeros of the derivative).

f (x) = 12x^5 - 5x^4

f '(x) = 60x^4 -20x^3

= 20x^3(3x - 1)

x = 0      x =1/3

So the extrema occur at x = 0 and x =1/3.

Now find the inflection points (zeros of the 2ndderivative).

f '(x) = 60x^4 -20x3^

f ''(x) = 240x^3 -60x^2

= 60x^2(4x - 1)

x = 0      x =1/4

The inflection points occur at x = 0 and x =1/4.

Since the only points that coincide are at x = 0,only 1 of the inflection points is also an extremum.

To learn more about inflection point visit:https://brainly.com/question/29017999

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The only points that coincide are at x = 0,only 1 of the inflection points is also an extremum.

What is  inflection points ?

An inflection point, point of inflection, flex, or inflection is a point on a smooth plane curve where the curvature changes sign in differential calculus and differential geometry.

First find the extrema (zeros of the derivative).

f (x) = 12x^5 - 5x^4

f '(x) = 60x^4 -20x^3

= 20x^3(3x - 1)

x = 0      x =1/3

So the extrema occur at x = 0 and x =1/3.

Now find the inflection points (zeros of the 2ndderivative).

f '(x) = 60x^4 -20x3^

f ''(x) = 240x^3 -60x^2

= 60x^2(4x - 1)

x = 0      x =1/4

The inflection points occur at x = 0 and x =1/4.

Since the only points that coincide are at x = 0,only 1 of the inflection points is also an extremum.

To learn more about inflection point visit:brainly.com/question/29017999

#SPJ1