Practice problem
If 0b=a\frac{0}{b}=ab0=a for some real value aaa, which of the following must be true?
a=b−1a=b^{-1}a=b−1
b=0b=0b=0
a=0a=0a=0
b=ab=ab=a
Type a concept, like “slope” or “photosynthesis”.
