Page 169 - Math Grade 11 (Advance)

PROEUS DARA

1.

0 0~
~?i''i:flStiSSnucr z = r(cosm + isinm)
u 1"' 't' 't'
"'
t i:ll ruH s J n s m-gm-g s
1 " u "

t?i'QlS zz = rr[cos(<p + <p) + isin(<p + <p)]
2
i = r (cos2<p+isin2cp)
3
z = lxz = c/xr)[cos(2<p+<p)+isin(2<p+<p)] = r\cos3<p+isin3<p)
4 3 4
z = lxz = (r xr)[cos(3<p+<p)+isin(3<p+<p)] = r (cos4<p+isin4<p)
4 4
i = z xz = (r xr)[cos(4<p+<p)+isin(4<p+<p)] = /(cos5<p+isin5<p)

II
"(
• •
z=z xz=rcosn<p+zsmn<p ) 'i
11-!

= 8( COS1t + i sin 1t)

3
r:lutsg z = 8(cosn + isinn) = -8 'i
u

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