$$\(26 A, B, D\)$$ and $$\(E\)$$ are points on a circle. $$\(A B C\)$$ and $$\(E D C\)$$ are straight lines. Diagram NOT accurately drawn Show that the length of $$\(A B\)$$ is $$\((p \sqrt{5}+q) \mathrm{cm}\)$$, where $$\(p\)$$ and $$\(q\)$$ are integers whose values are to be found. Show your working clearly.

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