Question

If i= V-1, then which expression is equal to 9i(13i)?

F -117
H 117
G 117i
I -117i​

Answer 1

If i= V-1, then -117 expression is equal to 9i(13i)

Explanation:

Original problem : 9i(13i)

=> 117
`i^(2)` (Multiply)

=> 117 * -1

=>
`i^(2)` = -1

=> -117

If i= V-1, then -117 expression is equal to 9i(13i)