InterviewSolution
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InterviewSolution
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Ifathen provedatte?Abted- abt edo bd2. |
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Answer» a/b = c/d =k let a= bc; c=dk; LHS a^2 + c^2/ ab+cs= b^2k+a^2k^2/bk-b+dkd=k^2( b^2+a^2/k( b^2+d^2)=k; RHS=ab+cd/ b^2+d^2 = bkb++aka/ b^2+d^2= k( b^2+d^2)/ b^2+d^2= LHS= RHS |
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