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f(x)=x^(3)+3x^(2)+4x+bsinx+c cosx,forall...

`f(x)=x^(3)+3x^(2)+4x+bsinx+c cosx,forall x in R` is a one-one function, the value of `b^(2)+c^(2)` is

A

1

B

2

C

`sqrt(2)`

D

None of these

Text Solution

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The correct Answer is:
A
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