PYQ Vault
Bank
Guides
Notes
Mocks
Board
Blog
About
Bank
Guides
Notes
Mocks
Board
NDA · Maths · Complex Numbers
NDA Complex Numbers — Formulas 1
Question
1
of 14
1.
What is the defining property of the imaginary unit
i
i
i
?
A
i
2
=
1
i^2=1
i
2
=
1
B
i
2
=
i
i^2=i
i
2
=
i
C
i
2
=
−
1
i^2=-1
i
2
=
−
1
D
i
2
=
−
i
i^2=-i
i
2
=
−
i
Back
Skip