It is short for sine (pronouncing it as sin annoys many maths teachers). Check this site out for detailed info. http://www.clarku.edu/~djoyce/trig/
What symbol
division
1234
oz = ounce
The uses of Sin, Cos etc. in Maths is in relation to Trigonometry. Trigonometry is the study of the relationship between angles and lengths of triangles.
It is short for sine (pronouncing it as sin annoys many maths teachers). Check this site out for detailed info. http://www.clarku.edu/~djoyce/trig/
A expression in maths is a collection of terms without an equality sign.
Side, Side, Side. Its usually used in trigonometry when you have to find two shapes that are similar or congruent.
"tenth"
What symbol
division
circle
direction
Related to.
Adding
The mean is usually the arithmetic mean - there are other means in maths. For a set of numbers, the arithmetic mean is the sum of the numbers divided by the number of numbers.