Question: Calculate the absolute value of the complex number (3 + 4i) - (2 - i).
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Math question: In a circle, if the angle at the center is 60°, what is the measure of the angle at the circumference, in degrees?
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What is the resulting displacement when a vector of magnitude 10 units is added to a vector of magnitude 5 units, given that they are co-linear and point in the same direction?