Question

Q3. If pq = 5 and p + q = 10, then,
2 +
2
, then
2 +
2 = ?​

Answer 1

P/q + q/p = p² + q² / pqp + q = 10 Squaring both sides ( p + q )² = 100p² + q² = 100 - 2 ( 5 ) p² + q² = 90So, p² + q² / pq ...

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