- #1
kini.Amith
- 83
- 1
Homework Statement
The value of √i + √-i , where i=√-1 is
(a) 0 (b) 1/√2 (c) √2 (d) -√2
Only one option can be chosen
Homework Equations
The Attempt at a Solution
Let (x + iy)2=i
Solving for x and y, I got
√i = +1/√2 (1+i) or -1/√2 (1+i)
Similarly i got
√-i = +1/√2 (1-i) or -1/√2 (1-i)
Now how do I calculate, √i - √-1,
i.e since there 2 possible values for each √i and √-i , which do i subtract from which?
Using another method I got the final nswer as + or - √2 , but u can only choose one of the given options