please help me in this questions
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Answer is (r1+r2) + (r3r4)/(r3+r4)
= {(r1+r2)(r3+r4) + r3r4}/(r3+r4)
= {(r1+r2)(r3+r4) + r3r4}/(r3+r4)
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I think this will help you
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