Practice problem
How many imaginary numbers are in the following set: 4i,17,45,6i11,−9,−7,4i, 17, \frac{4}{5}, \frac{6i}{11}, \sqrt{-9}, -\sqrt{7},4i,17,54,116i,−9,−7,
222
333
444
555
Type a concept, like “slope” or “photosynthesis”.
