Makakuha ng eksaktong at maaasahang sagot sa lahat ng iyong katanungan sa IDNStudy.com. Hanapin ang impormasyon na kailangan mo nang mabilis at madali sa pamamagitan ng aming komprehensibo at eksaktong platform ng tanong at sagot.

how to answer complex numbers

Sagot :

To answer complex answer, there is a given formula that:
i=√-1
i²=-1

Lets say for example:
(4+i)²
Do the square of binomial:
(4+i)(4+i)
=16+4i+4i+i²
Add all like terms:
16+8i+i²
Then since i²=-1, substitute the value:
16+8i-1
8i+15

We didn't do the 8i to 8√-1 because remember that there shuld be no negative number in square roots, so.... there:D

Hope this helps =)