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Asked by Jim

find all relative extrema using the first derivative test. f(x)=-4x+tanx on (-π/2,π/2)
3 years ago

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Answered by oobleck
f' = sec^2x - 4
f'=0 when
sec^2x = 4
secx = ±2
x = -π/3, π/3
3 years ago
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find all relative extrema using the first derivative test. f(x)=-4x+tanx on (-π/2,π/2)

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