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consider 15 roots of unity z1,z2,z3,z4,z5,z6,z7,z8,z9,Z10,z11,z12,z13,z14then arg((1+z1+z2+z3+z4+z5+z6+z7)/(1+z8+z9+Z10+z11+z12+z13+z14))=?

consider 15 roots of unity z1,z2,z3,z4,z5,z6,z7,z8,z9,Z10,z11,z12,z13,z14then arg((1+z1+z2+z3+z4+z5+z6+z7)/(1+z8+z9+Z10+z11+z12+z13+z14))=?
 

Grade:12th pass

1 Answers

Irshad Syed
13 Points
2 years ago
21 - (2) isin (2)
 
) دما - 22 (7) + i sin + i sin (17)
 
280 | i sin + (29 د - 217 (1 sin 2) ما 201
 
010 ( 1+ 2 + 22 + - -- 21 /+ 7 9+ 2 ۹۴ -- 2/1
 
۵۲۹ [+ 2+ Z+-- 71
 
2arg( 2) .
 
2 010 /4 24 4 2 2 + - . 21) - arg (h Zat.. )
T
 
CATE
 
2arg -- 27).
 
2arg & 4 cos 20+ Cos40 + --
 
+ i ( sin20+ sin 40+ ... sin 140)
 
+ 2arg & sin 80 cos (2+140) + sin(70). sin sing sin/20+140
 
Sin 80 (Los 10+ irin 70)
 
sin 10
 
2x70.
 
14π/15

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