Question

What is the value of 1+ i2+i4+i6+i8+. . . . .i20 ?

Answer 1

hey mate here is your answer

here a= 1

l=20i

n=20

so

sum of 20 terms= required value= n/2 (a+l)

= 20/2 (1+20i)

=10(1+20i)

= 10+200i

but I = √-1

so

sum = 10+200√-1

hope it will help you

mark me brainliest ✌✌

Answer 2

Answer:

Step-by-step explanation:

i10