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anonymous
 4 years ago
find line tangent to y=xcosx at point (pi, pi)
anonymous
 4 years ago
find line tangent to y=xcosx at point (pi, pi)

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0just typed y=1 in. says incorrect

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the equation should be y = x

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this is how I calculated it. y = xCosx is the function. taking it's derivative gives the slope to be dy/dx = cosx, which when evaluated at x =pi gives 1. now equation of line is y=mx+c, we know m=1 and putting y = pi and x = pi we get c =0. thus the equation of line tangent to the curve is y =x
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