Algebraic Number Prop. (8) Flashcards
Any number raised to an even exponent will be…
Positive. However, base could be +/-
When a number or variable is raised to an odd exponent…
Result can be +/- depending on the base. Resulting sign is the same as sign of the variable
When given a radical, they only want the…
Principal (positive) square root
For odd roots of all real #’s…
There can be three answers…pos, neg, 0
When a number b/t 0 and 1 is squared…
The result is smaller
When a number b/t 0 and 1 has its square root taken…
The result is greater than the original number
Absolute value…
Think two case solution.
When solving absolute values…
Plug answers back into equation to ensure they aren’t extraneous.
Two case method in solving absolute value…
Solve for case in which portion inside abs value is both negative and positive