Question

3. Simplify
(i) ;i2 + i4+i6+ ... +(2n+1) terms​

Answer 1

Explanation:

i

2

+ i

4

+ i

6

+ ...upto (2n+1) terms

=(−1+1)+(−1+1)+(−1+ .....upto (2n+1))terms ⇒ (odd terms)

=0+0+....−1

=−1