Find the values of k for which the ...
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Find the values of k for which the following equation has equal roots : (k-12) x2 +2 (k-12)x+2 = 0

JEE/Engineering Exams
Maths
Solution
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( (k-12) x^{2}+2(k-12) x+2=0 ) equation nas zeal nots if ( b^{2}-4 a c=0 ) ( [2(k-12)]^{2}-4(k-12] 2=0 ) ( x(k-12)[(k-12)-2]=0 ) ( k=12 ) or ( K-14=0 ) ( k=14 ) for ( k=12,14 ) equation has real ( x 006 )
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