Math question: In triangle ABC, angle BAC measures 90°. The angle bisector of angle BAC intersects BC at point D. If AD = 4 cm and CD = 6 cm, what is the length of BD?
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What is the maximum value of the function f(x) = x^2 - 4x + 3 on the interval [1, 5]? (
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What is the radian measure of an angle in a unit circle if its central arc length is equal to half the circumference of the circle?