It means that something is obvious and doesn't need complicated proofs or calculations to prove it. For example, the number 1 is a "trivial" factor of every integer.
Trivial is an adjective.
The word trivial means "useless". So a trivial set would be a useless set.
Arithmetic is another word for math or mathematics.
It is the same word: Équation.
to multiply by that same number
To distribute; to "spread" evenly.
"Whinge" is not slang, it is an English word meaning "to complain or whine", usually for a trivial issue.
A trivial lie is also known as a fib.
A number that one is solving for-the unknown.
Nothing. Maybe you are thinking of mathematics or anathema
Mathematics is just another word for Math, like Language Arts is for English, and History is for Social Studies
adds a trivial amount of Fat