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Juan puzzled by the triangle in front of a temperature symbol discovers in his book that the triangle indicates the temperature has .?
changed
In math what does the U mean?
The U symbol indicates a Union in set notation. This means that the resulting set is the combination of all unique items in the sets on either side of the symbol.
What does a radical symbol refer to?
A radical symbol indicates taking a root. A radical symbol alone indicates a square root (or equivalently, raising to the 1/2 power). If there is a small superscript number just to the left of the radical, then that indicates which root to take (square root for 2, cube root for 3, forth root for 4, fifth root for five, etc). This means raising to the 1/x power, where x is the small superscript number to the left of the radical.
On spreadsheets what is the name of the symbol you can use if you want to automatically add a set of numbers together?
That is the Greek letter Epsilon which indicates summation.
What is 0.0000043 in scientific notation?
In scientific notation, 0.0000043 is 4.3 x10^ -6 [where the ^ symbol indicates that the 10 is raised to the power of -6 ... usually written in superscript]
