The coefficients a, b, c in the quadratic equation a x²+b x+c=0 are chosen from the set \1,2,3,4,5,6,7,8. The probability of this equation having repeated roots is:

Statistics and Probability: JEE Main 2024 Mathematics question

JEE Main 2024 · 5 Apr, Morning shift · Q4934

JEE Main 20245 Apr, Morning shiftMathematicsMediumStatistics and Probability258× since 2002

The coefficients

a, b, c

in the quadratic equation

a x^2+b x+c=0

are chosen from the set

\{1,2,3,4,5,6,7,8\}

. The probability of this equation having repeated roots is :