Given z sub 1 is equal to 9 plus 9 square root of 3 i and z sub 2 is equal to 2 plus square root of 3 i , what is z sub 2 minus z sub 1 ?
Answer
A
7 plus 10 square root of 3 i
B
negative 7 plus 10 square root of 3 i
C
8 plus 7 square root of 3 i
D
negative 7 minus 8 square root of 3 i
Explanation
Subtract the real parts and the imaginary parts separately: (2 − 9) + (√3 − 9√3)i = −7 − 8√3i. This matches choice B, negative 7 minus 8 square root of 3 i.
AI-written and checked against the verified answer.