Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 4 tan t, y = 5 sec t; 0 ? t ? 2?

A.  -  = 1; -? < x < ?
B. y = x2 - 9; -3 ? x ? 3
C. y = 5; -? < x < ?
D.  +  = 1; -? < x < ?


Answer: A

Mathematics

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