Math question: In triangle ABC, the angle bisector of angle A intersects side BC at point D. If angle BAD = 30° and angle ACD = 40°, what is the measure of angle BAC?
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What is 62.5% as a fraction?
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Question: Find the unit vector in the direction of vector 𝑣 = 3𝑖 + 4𝑗 - 2𝑘.