(5i), (-2i) = _____?
- 10
- -10
- 10i
- None of these
Explanation
Given the product:
(5i) × (-2i)
= -10i²
Since i² = -1:
= -10(-1)
= 10
Related MCQs
- 2x + 2
- 2x - 8
- 2x - 5
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 2x² + 4 = 9x
- 2x² + 9 = 4x
- 2x² + 9 = 4x
- x² + 4 = 9x