(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find a function of the form f(x)=a+bcos(cx) that is tangent to the line y=1 at the point (0,1), and tangent to the line y=x+3/2-pi/4 at the point (pi/4, 3/2).

2. Relevant equations

I know that the problem involves differentiation and implicit differentiation. I don't really think there are many "equations" that I could give that would help, besides may the limit defintion.

3. The attempt at a solution

I haven't made it very far, but I am quite sure you need to somehow separate a, b, and c and than eliminate c altogether. I also have been trying odd and even values for c...

all help is appreciated, thanks...

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# Homework Help: Tough Function Using Differentiation

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