how 2.root-4 is converted into 4i
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Root under -1 is considered as iota which is denoted as i. In this case root under -4 is convered as 4 × root under -1 which is 4i.
sneha574:
and 2??
2 is also there n
ok it's get multiply understood thank you
wher 4 comes out of the root it becomes 2 and the 2 already existing gets multiplied
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