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If \(rs\ne0,\) is \(\dfrac{1}{r} + \dfrac{1}{s} = 4?\)
(1) \(r + s = 4rs\)
(2) \(r = s\)
[spoiler]OA=A[/spoiler]
Source: Official Guide
(1) \(r + s = 4rs\)
(2) \(r = s\)
[spoiler]OA=A[/spoiler]
Source: Official Guide
