Differentiate each of the following. a) f(x) = (x^3 + 5x + 2)sin(x) b) y = (sin(x))/cos(x) c) g(x) = (3x)/(1 + tan(x)) d) (tan(x))/(-6x^2 + cos(x)) Let y = (tan(x) - 1)/sec(x). Show that y' = (1 + tan(x))/sec(x) Find all x-values where the graph of f(x) = x - 2cos(x) has a horizontal tangent line.
Added by Rosa C.
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f(x)= (x3+5x+2)sin(x) Show more…
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