Question
Question: The remainder obtained when the polynomial \(1 + x + x^{3} + x^{9} + x^{27} + x^{81} + x^{243}\) is...
The remainder obtained when the polynomial
1+x+x3+x9+x27+x81+x243 is divided by x−1 is
A
3
B
5
C
7
D
11
Answer
7
Explanation
Solution
Putting x=1, remainder = 7