√-8 × √-2 = কত ?
Solution
Correct Answer: Option C
√-8 × √-2
=√(8 .i²) × √(2 .i²) [i²=-1]
= 2√(2)i × √(2)i
=i² 4
=-4
=√(8 .i²) × √(2 .i²) [i²=-1]
= 2√(2)i × √(2)i
=i² 4
=-4
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions