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If a+b+c=1, a^2+b^2+c^2=9 and a^3+b^3+c^...

If `a+b+c=1`, `a^2+b^2+c^2=9` and `a^3+b^3+c^3=1`, then `1/a + 1/b + 1/c` is (i)`0` (ii)`-1` (iii)`1` (iv)`3`

A

`2/3`

B

5

C

6

D

1

Text Solution

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The correct Answer is:
D
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VIKAS GUPTA (BLACK BOOK) ENGLISH-QUADRATIC EQUATIONS -EXERCISE (SUBJECTIVE TYPE PROBLEMS)
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