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निम्नलिखित प्रत्येक में k का मान ज्ञात क...

निम्नलिखित प्रत्येक में k का मान ज्ञात कीजिए जिसके लिए निम्न समीकरण के मूल वास्तविक और बराबर हैं।
(i) `x^(2)-2(k+1)x+k^(2)=0`
(ii) `k^(2)x^(2)-2(2k-1)x+4=0`
(iii) `(k+1)x^(2)-2(k-1)x+1=0`
(iv) `kx(x-2)+6=0`
(v) `x^(2)-4kx+k=0`

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