There are infinitely many. One such is 11*(0.25)-1/2.
Equivalent expressions.
None of "these" expressions represent anything!
An absolute-value function
There are many expressions that have this value. The simplest one is the number zero itself.
It means the distance from zero. | 22 | (the absolute value of 22) is 22; | -22 | (the absolute value of -22) is also 22. Basically just take out the negative, and that is the absolute value.
algebraic expressions
Equivalent expressions.
None of "these" expressions represent anything!
Yes, numerical expressions can have the same value. For example, the expressions 2+3 and 5 both have the value of 5. Similarly, the expressions 2x3 and 6 both have the value of 6. In general, any two numerical expressions that evaluate to the same number will have the same value.
Yes, some expressions can be identical in value.
They are callled: Identical equations or Identities See: http://www.tutorvista.com/search/value-algebraic-expressions
equivalent
unequal
Not necessarily.
They are identities.
There are a few steps to rewriting expressions. The steps of rewriting expressions are finding the value of the letter and then using the common factor.
In C++ all false relational expressions have a mathematical value of 0.