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Prove that: (a^-1 + b^-1)^-1 =ab÷a+b |
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Answer» Step-by-step EXPLANATION: To PROVE: (a^-1 + b^-1)^-1 = ab/a+b LHS = (a^-1 + b^-1)^-1 (1/a + 1/b)^-1 (a+b/ab)^-1 ab/a+b |
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