What is the range of the function f(x) = 3sin(2x) - 4cos(x) + 5 for x ∈ [0, π]?
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Math question: How many ways can you arrange a group of 5 students out of 10 total students?
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What is the measure of an angle formed by a straight line and a perpendicular line, given that the straight line and the perpendicular line form a right angle?