What is the point of intersection between the curves y=sec²x and y=4? I need it in order to find the area of the region bounded by the two curves. Thanks.
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Originally Posted by sun1 What is the point of intersection between the curves y=sec²x and y=4? I need it in order to find the area of the region bounded by the two curves. Thanks. The y-values must be equal: $\displaystyle \sec^2(x)=4$ $\displaystyle |\sec(x)|=2$ $\displaystyle \left|\dfrac1{\cos(x)}\right|=2$ $\displaystyle \cos(x) = -\dfrac12~\vee~\cos(x)=\dfrac12$ Can you take it from here?
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