If axn-1+bxn-2+cxn-3 is a cubic polynomial, where n belongs to N ,then find the value of n
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Answered by
1
Answer:
General form of a cubic polynomial is ax
3
+bx
2
+cx+d
⇒ax
n−1
+bx
n−2
+cx
n−3
=ax
3
+bx
2
+cx+d
⇒n−1=3 (on comparing the coefficients)
⇒n=3+1=4
∴n=4
Answered by
1
Answer:
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