Math question: In circle theorem, if a chord is perpendicular to a radius, what is the relationship between the length of the chord and the distance from the center of the circle to the chord?
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Math question: Solve the cubic equation 2x^3 - 7x^2 + 3x - 5 = 0.
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What is the probability of rolling a fair die and getting an odd number, given that a multiple of 3 was rolled?