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If a and b are the roots of the equation Px2 – Qx + R = 0 , then what is the value of (1/a2) + (1/b2) + (a/b) + (b/a) ?

Q2-2P2R+PPR2
Q2-2PRR+PPR2
Q2-2R2P+RP2R2
Q2-2PR2R+2PP2R2

Correct Answer: Q2-2PRR+PPR2

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