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14 godz. temu · Calculate the time derivative of the magnitude of the velocity vector \( v \). ... at the point (3, √2, E). Let C be the cylindrical helix r(t) = (a cos(t), a sin(t), bt), where a and b are positive constants and t ≥ 0. Find the arc length s = s(t) of C as a function of t (measured from t = 0). ... Find the tangential and normal ...
