What does it mean when a + sign is underlined in front of a radical sign
2006-11-15 07:58:47 · 4 answers · asked by Emizzle 2 in Education & Reference ➔ Homework Help
It is not a + sign underlined.It is plus and minus sign put together indicating that the result is either positive(+) or negative(-).In fact when when we find out a square root of any number say 16,the answer may be +4 or -4 because +4^2is 16 and -4^2 is also 16.Therefore square root of 16 is plus-minus 4 that is eithr plus 4 or minus 4.
2006-11-15 08:13:23 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
It means the answer is both the square root positive and negative, because 3^2 is 9 and -3^2 is 9 so the square root of 9 is +/- 3...positive and negative 3
2006-11-15 16:04:55 · answer #2 · answered by Reecey 2 · 0⤊ 0⤋
+ sign in front of radical sign means this radical is positive.
for example + square root 3
2006-11-15 16:24:28 · answer #3 · answered by flori 4 · 0⤊ 0⤋
The plus sign is not underlined it has a minus sign under it.
It means "plus or minus."
2006-11-15 16:07:00 · answer #4 · answered by Caffeinated 4 · 0⤊ 0⤋