Okay is a number to a negative power 1 over that number to the power...
2 to the power of -2
Is 1 / 4
IS IT DIFFERENT WHEN IT IS IN BRACKETS
(2) to the power of negative 2
- 1 over 4?
2007-05-26 07:16:27 · 4 answers · asked by connorneve 1 in Science & Mathematics ➔ Mathematics
Nope, it's the same.
Remember your order of operations: Parentheses, Exponents, etc.
So with (2)^-2, the first thing you'd do would be to resolve the thing inside the parentheses. Well, (2) = 2, so you're left with 2^-2, or the exact same thing you'd have without parentheses.
Hope that helps!
2007-05-26 07:21:38 · answer #1 · answered by Bramblyspam 7 · 0⤊ 0⤋
They're the same in your example, but they would be different if the base had a negative number. For example:
-2^-2 = -1/4
(-2)^-2= 1/4
This is because exponents come before multiplication. In the first example, the expression means two to the negative two power, quantity times negative one. The second example means negative two to the negative two power.
2007-05-26 07:20:08 · answer #2 · answered by jsoos 3 · 1⤊ 0⤋
No its not different it will become different only in case when there r 2 numbers inside bracket with a mathematical symbol inside for eg.
(2+3)raised to power -2
2007-05-26 07:27:18 · answer #3 · answered by unknown 2 · 0⤊ 0⤋
2^(-2)
is the same as
(2)^(-2)
The are both positive 1/4.
2007-05-26 07:22:17 · answer #4 · answered by Dan Peirce 5 · 1⤊ 0⤋