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Probability question

2024 · 5 Apr · Shift 1 · Q39
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  5. /2024 · 5 Apr · Shift 1 · Q39

Probability question

2024 · 5 Apr · Shift 1 · Q39

JEE MainMathematicsProbabilityMCQ+4 / −1
The coefficients a,b,ca, b, ca,b,c in the quadratic equation ax2+bx+c=0a x^2+b x+c=0ax2+bx+c=0 are chosen from the set {1,2,3,4,5,6,7,8}\{1,2,3,4,5,6,7,8\}{1,2,3,4,5,6,7,8}. The probability of this equation having repeated roots is :
  1. A
    1128\frac{1}{128}1281​
  2. B
    164\frac{1}{64}641​
  3. C
    3256\frac{3}{256}2563​
  4. D
    3128\frac{3}{128}1283​
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