1.

Find the value of k if the following equations have equal roots i) x^(2)–2(1+3k)x+7(3+2k)= 0 ii) x^(2) -15 - k(2x – 8) = 0 iii) (3k+1)x^(2)+2(k+1)x+k=0 iv) x^(2)+2(k+2)x+9k=0

Answer»


Answer :i) `(-10)/(9)`, 2 ii) 3, 5 iii) `(-1)/(2)`, 1 IV) 1, 4


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