Official Guide 12th edition. Page 175. Q 164.
If m^-1 = -1/3, then m^-2 is equal to:
I got -1/9 because we do not know whether the - sign is from the numerator or the denominator, and the m^-2 would square the denominator, however the book says 1/9. So I am confused. Are they just assuming that the negative sign is from the denominator?
Thank you!
If m^-1 = -1/3, then m^-2 is equal to:
I got -1/9 because we do not know whether the - sign is from the numerator or the denominator, and the m^-2 would square the denominator, however the book says 1/9. So I am confused. Are they just assuming that the negative sign is from the denominator?
Thank you!
