Page 150 - Math Grade 11 (Advance)

PROEUS DARA

0 02 ~
2 tntJU nfll t!=i't:flStHlSnuti z = 3-4i !=iMSl lzl , lzl al:l 1-zl '1
U I6V
2 2
z = 3-4i~lzl = J3 +(-4) = J9+ 16 = 5
2 2
z = 3+4i~lzl = J3 +4 = J9+ 16 = 5
2 2
-z = -3+4i~l-zl = J(-3) +4 = J9+16 = 5 '1

(JI
2 tntJU n.n 2

z = 2- i t!=itfiS z = 2 + i
2
z = 2- i ~ lzl = J2 + ( -1 ) = J4+.l = J5
2
2 2
lzl = (/5) = 5

z·z = (2-i)(2+i) = 4+ 1 = 5

391f.J)tfuJ3 !=iMSllzd·lz 2 1 21:3 lz 1 ·z 2 1 ttl z 1 = 1-i 21:3 z 2 = 2+i '1

2 2
z 1 = 1-i~lz 1 1 = J1 +(-1) = J2
2
2
z 2 = 2 + i ~ 2 1 = J2 + 1 = J5 tl=ltfiS lz 1l·lz 2 1 = J2 x Js = Jf6
lz
z ·z = (l-i)(2+i)
1 2

= 3 -i

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