AP EAMCET · Maths · Probability
If each of the coefficients \(a, b, c\) in the equation \(a x^2+b x\) \(+c=0\) is determined by throwing a die, then the probability that the equation will have equal roots, is
- A \(\frac{1}{36}\)
- B \(\frac{1}{72}\)
- C \(\frac{7}{216}\)
- D \(\frac{5}{216}\)
Answer & Solution
Correct Answer
(D) \(\frac{5}{216}\)
Step-by-step Solution
Detailed explanation
\(a x^2+b x+c=0\) For equal roots, \(b^2=4 a c\)…
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