Practice problem
Let w=6−93iw = 6-93iw=6−93i and z=11i−42z=11i-42z=11i−42. What is w−zw-zw−z equal to?
−36−82i-36 - 82i−36−82i
48−104i48-104i48−104i
−5−51i-5-51i−5−51i
48−51i48-51i48−51i
Type a concept, like “slope” or “photosynthesis”.