Find an equation of the tangent line to the curve at the given point. y = x + tan(x) at (pi, pi)

1 answer:

8 0

Differentiating :

y' = 1 + sec^2(x),

cosπ=−1

plug in pi = -1 ,for x:

1 + sec^2(pi) = 1 + (-1)^2
= 2

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