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- If a coffee filter is dropped, its velocity after t seconds is given by v(t)=4(10.0003t) feet per second. What is the terminal velocity, and how long does it take the filter to reach 99 of terminal velocity? Use a table increment of 0.1 and given your answer to the nearest tenth of a second.Find dy/dx 1. y = sin ( 5x - 9) 2. y = sin-4x/5Solve for dy/dx if 2^tanx+y Arccsc(πx) = cos^2 (πx^2 - y^2)