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Evaluate the following expression:

\[123456789^{2} - (123456788 \times 123456790).\]

If you use a calculator whose precision is not strong enough to answer this question, then you **will** answer this problem incorrectly.

\[ \large\color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} + \color{green} 6^{\color{blue} 6} = \color{green}6^ {\color{brown}a} \]

If \(\color{brown} a\) satisfies the equation above, what is the value of \(\color{brown} a\)?

What is the value of

\[ \large \sqrt{1\text{%}}\, ? \]

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