Complex Numbers
Complex Numbers
Allen Star Batch
Grade 11
Question:
The number of complex numbers which are conjugate of their own cube, is ____.
Step-by-Step Solution
Key Concept: Apply the binomial coefficient formula for choosing 3 items from 5.
The combination $C_3^5 = \frac{5!}{3! \cdot 2!} = \frac{5 \times 4}{2 \times 1} = 10$.
Correct Answer: 5