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If a curve with equation of the form y=a...

If a curve with equation of the form `y=ax^(4)+bx^(3)+cx+d` has zero gradient at the point (0, 1) and also touches the x-axis at the point `(-1,0)` then the value of x for which the curve has a negative gradient are

A

`x gt1`

B

`x lt 1`

C

`x lt -1`

D

`-1 le x le 1`

Text Solution

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The correct Answer is:
C
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