- #1

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## Homework Statement

So I have the problem questiona dn my teachers solution posted below.

I understand:

f(x

_{o}) = sin pi/6

f '(x

_{o}) = cos pi/6

but i dont know how he gets them into fraction form with the SQRT of 3, it looks like some pythagoras but i dont really know how he did it.

## Homework Equations

Question 3(a) (sorry I named it 'answer' instead of 'question')