Course:MATH110/Archive/2010-2011/002/Solutions/Course/MATH110/002/Solutions/WritingOne

In how many different ways can you write 1?

Here's a list of ways that various teams came up with:

• 1
• 1 + 0
• 2 - 1
• -1 + 2
• $2/2$
• ${\frac {d}{dx}}x$
• $2^{0}$
• $1^{2}$
• $-(i^{2})$
• $\cos(0)$
• $\sin(\pi /2)$
• $\lim _{x\to 0}{\frac {\sin x}{x}}$