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  4. If a+b+c=1, a2+b2+c2=9 and a3+b3+c3=1, then the value of (1/a)+(1/b)+(1/c) is :

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Q. If $a+b+c=1, a^2+b^2+c^2=9$ and $a^3+b^3+c^3=1$, then the value of $\frac{1}{a}+\frac{1}{b}+\frac{1}{c}$ is :

Sequences and Series

Solution:

Correct answer is (d) 1