state gov APSSB CGL (Steno/RK/UDC) Mock Test Series 2025 Quantitative Aptitude Algebra Identities

यदि a + b = 3 और a2 + b2 = 89 है, तो \(\frac{1}{a} + \frac{1}{b}\) का मान क्या है?

1
\(3 \over 20 \)
2
\( - \frac{3}{{40}}\)
3
\( - \frac{3}{{20}}\)
4
\(1 \over 8 \)
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