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Roots Of The Equation (Posted on 2003-08-20) Difficulty: 3 of 5
Let us consider the quadratic equation: ax˛ + bx + c = 0.

We assign values to the coefficients a, b and c by throwing a die.

What is the probability that the equation will have real roots ?

See The Solution Submitted by Ravi Raja    
Rating: 2.6667 (9 votes)

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Solution solution | Comment 1 of 17
there is 19.907% probability the solution is real

for each a, b, and c from 1 to 6, calculate b^2-4ac, and if it is >= 0, then the quadratic has real roots
  Posted by derek on 2003-08-20 09:51:27
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