class 12 Math Algebra Probability
A ship is fitted with three engines , , and ,. The engines function independently of each other with respective probabilities . and ,and For the ship to be operational at least two of its engines must function. Let X denote the event that the ship is operational and let , , and denote respectively the events that the engines , and ,are functioning. Which of the following is (are) true?

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determinants
matrices
binomial theorem
complex numbers and quadratic equations
sequences and series
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determinants
matrices
binomial theorem
complex numbers and quadratic equations
sequences and series