Question

What is the value of the expression iºxi1 x 2 x 3 xi4?

a) 1
b) -1
c) i
d) -i

Answer 1

Option b.

Explanation:

Note: The given expression is not in correct form. Consider the given expression is
`i^0* i^1* i^2* i^3* i^4`.

Let as consider the given expression is

`i^0* i^1* i^2* i^3* i^4`

We know that,

`i^0=1,i^2=-1,i^3=-i,i^4=1`

Using these values, we get

`i^0* i^1* i^2* i^3* i^4=1* i* (-1)* (-i)* 1`

`=i^2`

`=-1`

The value of given expression is -1.

Therefore, the correct option is b.