Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Quadratic Equations

If α and β are the roots of the equation y² + 4y + 6 = 0, then \(\rm \frac{1}{{\alpha^{3}}} + \frac{1}{{\beta^{3}}}\) is equal to?

1

\(\rm \frac{1}{20}\)

2

\(\rm \frac{1}{27}\)

3

\(\rm \frac{4}{27}\)

4

More than one of the above

5

None of the above

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