How do you simplify 1+i2?
Simplify the given expression:
The given expression is
1+i2=1+2i+i2 ...[∵a+b2=a2+2ab+b2]
We know that, i=-1
⇒i2=-1
∴1+i2=1+2i-1
=2i
Hence, 1+i2 can be simplified into 2i.