Find absolute maximum and minimum values of the function, if they exist, over the indicated interval. Where no interval is specified, use the real line. List your answers in terms of ordered pairs.
f (x) = tan x + 2sec x; (?? /2, ?/2)
Minimum = 
Mathematics
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Find the first partial derivatives of the function.
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Solve the problem.Decide whether or not the points are the vertices of a rectangle.(-10, -4), (-1, -18), (13, -9), (4, 5)
A. No B. Yes
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