Question

need help to verify this :o

Answer 1

ok verifying xD

Answer 2

in complex plan verify this , i checked it but had different answer :O

Answer 3

so its basically the product of those complex numbers?

Answer 4

its correct :O :O

Answer 5

thats the most easy thing ever :O :O :O :O

Answer 6

(3, 1)(3, -1) .. what does that give you?

Answer 7

(3, 1)(3, -1)=(10,2)
but i got
(9/5,7/5)
as finall answer

Answer 8

its not (10,2 )

Answer 9

its just 10 :P

Answer 10

ohh right !

Answer 11

i dint see that !
for get
3-3=0 !

Answer 12

thx !

Answer 13

(a b)(a -b) = a^2+b^2 rememberthat

Answer 14

well
(x1,y1)(x2,y2)=(x1x2-y1y2,y1x2+x1y2)

Answer 15

omg.. who remembers that? xD

Answer 16

i should remember that :O

Answer 17

no .. you can just multiply :O..

Answer 18

using normal math .. why remember huge formula?

Answer 19

well i found this one easy hehe

Answer 20

can u derive that formula? :P

Answer 21

yess
z1z2=(x1+iy1)(x2+iy2)
the rest is normal

Answer 22

aha :P.. then why remember the formula :P

Answer 23

its easier to just multiply. can be done in head

Answer 24

anyhoo.. i thin kyou have more to study :D

Answer 25

hehe yess