Question

each Coefficient in equation ax square + bx + c is equal to zero is obtained by throwing a fair dice find the probability that the equation has equal roots

Answer 1

ok I hope this wibll help you

Answer 2

Pre-requiste to understand my answer :
1) Equal roots condition in quadratic equation.
2) bit patience and adventurous mind.

Total No. of outcomes = 6×6×6= 216.

No. of favorable outcomes = 5

Probability = 5/216

Hope, you may understand my writing and it helps you .

Well , the question can become little better if probability of real roots was asked instead of equal roots.

Bye !