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Popular >

extreme 5x^3-3x^5

Solution

extreme points

5 x^{3} - 3 x^{5}

Solution

Minimum (- 1, - 2), Saddle (0, 0), Maximum (1, 2)

Solution steps

f^{'} (x) = 15 x^{2} - 15 x^{4}

Find intervals:

Decreasing

: - \infty < x < - 1,

Increasing

: - 1 < x < 0,

Increasing

: 0 < x < 1,

Decreasing

: 1 < x < \infty

Plug

x = - 1

into

5 x^{3} - 3 x^{5} : - 2

Minimum (- 1, - 2)

Plug

x = 0

into

5 x^{3} - 3 x^{5} : 0

Saddle (0, 0)

Plug

x = 1

into

5 x^{3} - 3 x^{5} : 2

Maximum (1, 2)

Minimum (- 1, - 2), Saddle (0, 0), Maximum (1, 2)

Graph

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Frequently Asked Questions (FAQ)

What is the extreme 5x^3-3x^5 ?
The extreme 5x^3-3x^5 is Minimum(-1,-2),Saddle(0,0),Maximum(1,2)