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December 22, 2014

December 22, 2014

Posted by **Alyssa** on Sunday, February 26, 2012 at 12:27pm.

- calculus -
**Reiny**, Sunday, February 26, 2012 at 2:34pmThe hard part is to find the intersection of

y = 4-x and y=x - cosx

I ran it through Wolfram and got

x = 1.85825

http://www.wolframalpha.com/input/?i=x-cos%28x%29+%3D+4-x

area = ∫ (4-x - x + cosx) dx from 0 to 1.85825

= ∫(4 - 2x + cosx) dx from ....

= [ 4x = x^2 + sinx] from ....

= you do the arithmetic

make sure your calculator is set to radians

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