√-1 × √-1 = _____?
- 1
- -1
- I
- None of these
Explanation
√-1 is represented as "i" (the imaginary unit) in complex numbers.
√-1 × √-1 = i × i = i².
By definition, i² = -1.
Related MCQs
ایسی شخصیت جس کے چاروں اطراف برابر ہوں وہ کیا کہلاتی ہیں؟
- Rectangle
- Square
- Circle
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
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