Comments

• 1/x is the "reciprocal" of x. If x is a fraction, you can get the reciprocal of x by flipping it, e.g. if x = 2/3, then 1/x = 3/2. 1/1/x ("the reciprocal of the reciprocal of x") just means that you flip x twice, and you'll get b…

  in Math problem! 1/x? 1/1/x? Comment by cwcc June 2021
• You would be right if you were multiplying them, but there's a division sign in there. (5-i) / (6+3i) Multiply the whole thing by (6-3i) / (6-3i). (5-i)(6-3i) / 45 FOIL the left. (27-21i) / 45 Distribute the 45. (3/5) - (21/45)i

  in How do I do this problem? Comment by cwcc June 2021
• You would be right if you were multiplying them, but there's a division sign in there. (5-i) / (6+3i) Multiply the whole thing by (6-3i) / (6-3i). (5-i)(6-3i) / 45 FOIL the left. (27-21i) / 45 Distribute the 45. (3/5) - (21/45)i

  in How do I do this problem? Comment by cwcc June 2021
• You would be right if you were multiplying them, but there's a division sign in there. (5-i) / (6+3i) Multiply the whole thing by (6-3i) / (6-3i). (5-i)(6-3i) / 45 FOIL the left. (27-21i) / 45 Distribute the 45. (3/5) - (21/45)i

  in How do I do this problem? Comment by cwcc May 2021
• 1/x is the "reciprocal" of x. If x is a fraction, you can get the reciprocal of x by flipping it, e.g. if x = 2/3, then 1/x = 3/2. 1/1/x ("the reciprocal of the reciprocal of x") just means that you flip x twice, and you'll get b…

  in Math problem! 1/x? 1/1/x? Comment by cwcc May 2021