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The curve y=ax^(4)+bx^(2)" with "abgt0...

The curve `y=ax^(4)+bx^(2)" with "abgt0`

A

has no horizontal tangent

B

is concave up

C

is concave down

D

has no points of inflection

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The correct Answer is:
D
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PREMIERS PUBLISHERS-APPLICATIONS OF DIFFERENTIAL CALCULUS-Solution To Exercise 7.10
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  9. Angle between y^(2) = x and x^(2) = y at the origin is

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  16. The maximum value of the functions x^(2) e^(-2x) , x gt 0 is ……….

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