if i have (-a/b)-2, where -2 is the power of that nomber .. the result will be -9/4 ?? :-?? [4 exemple: a-n, where -n is the power of that nomber the result is 1/an]
2007-08-11 05:41:20 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First of all, a negative exponent "flips" the expression and becomes a positive exponent. So,
(-a/b)^-2 = (-b/a)^2
Now square numerator and denominator. You answer must be a positive number, because any number squared is positive (or zero if it is 0 squared).
2007-08-11 06:10:08 · answer #1 · answered by Marley K 7 · 0⤊ 0⤋
If you have (-a/b)^-2 it is same as (-b/a)^2 = b^2/a^2
How will it be -9/4? Square of a negative number will be positive.
2007-08-11 12:55:50 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
it's number not nomber
2007-08-11 13:52:20 · answer #3 · answered by Theta40 7 · 0⤊ 0⤋