railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Mathematics Quadratic Equations Sum and Product of Roots

यदि α और β द्विघात समीकरण (5 + √2) x2 - (4 + √5) x + (8 + 2√5) = 0 के मूल हैं, तो 2αβ / (α + β) का मान क्या है?

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