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Posted by **Julie** on Friday, April 20, 2012 at 2:58pm.

- Calculus grade 12 -
**Damon**, Friday, April 20, 2012 at 3:04pmfirst find the slope at x = pi

dy/dx = 1 + cos x = 1+cos pi = 1-1 = 0

so the line is horizontal

at x = pi

y = pi + sin pi = pi + 0 = pi

so the equation of our line is

y = pi

- Calculus grade 12 -
**Julie**, Friday, April 20, 2012 at 3:09pmThank you Damon!

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