A) 60
B) 40
C) 70
D) 50
Correct Answer: C
Solution :
We have, \[f(x)={{({{x}^{3}}+2)}^{30}}\] Clearly, it is a polynomial of degree 90. It is given that \[{{f}^{n}}(x)\]is a polynomial of degree 20. \[\therefore \] \[90-n=20\] \[\Rightarrow \] \[n=70\]You need to login to perform this action.
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