Question: Differentiate. y = 9X^2 sin x tan x y' = 18x sin(x)tan(x) + 9x^2sin(x)sec^2x Apply the Product Rule. Recall that d/dx(sinx) = cosx and that

Differentiate. y = 9X^2 sin x tan x y' = 18x sin(x)tan(x) + 9x^2sin(x)sec^2x Apply the Product Rule. Recall that d/dx(sinx) = cosx and that d/dx(tanx) = sec^2x. Find an equation of the tangent line to the curve at the given point. y = 9ex cos x, (0, 9) y = 9 + 9

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