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Mathematics 20 Online
OpenStudy (anonymous):

The slope of the tangent line at the point on the graph of \(f (x) = 89 \sec (4 x) + 50 \csc (5 x) + 7\) where \(x = \pi / 4\) is?

OpenStudy (kira_yamato):

Find f'(x) and compute f(π/4) and f'(π/4). From there use the formula y - f(π/4) = [f'(π/4)][x - π/4]

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