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robertpatrick
- Senior | Next Rank: 100 Posts
- Posts: 39
- Joined: Mon Jul 07, 2008 8:13 pm
- Thanked: 1 times
For which of the values of x is sqrt(1 - sqrt( 2 - sqrt(x) ) ) NOT defined as a real number.
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...ok so I'm looking for a value of x that will lead to the expression above trying to take the square root of a negative number. The first time through I thought to choose 4 because I thought that the expression would be undefined when it got to sqrt(0), but it's not undefined, it equals zero.
1
2
3
4
5
...ok so I'm looking for a value of x that will lead to the expression above trying to take the square root of a negative number. The first time through I thought to choose 4 because I thought that the expression would be undefined when it got to sqrt(0), but it's not undefined, it equals zero.
