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if z1,z2,z3,z4,are the roots of the equation z^4=1,then the value of summation i=1 to i=4 is a)0 b) 1 c)iota d)1+iota

if z1,z2,z3,z4,are the roots of the equation z^4=1,then the value of summation i=1 to i=4 is a)0 b) 1 c)iota d)1+iota

Grade:12

1 Answers

AKASH GOYAL AskiitiansExpert-IITD
420 Points
13 years ago

Dear Nikhil

Please write the term/function on which the summation is to applied.

I am assuming summation of Zi

the 4 roots will be Z1=1, Z2=-1, Z3=i, Z4=-i

there sum  will be zero

 

All the best.                                                           

AKASH GOYAL

AskiitiansExpert-IIT Delhi

 

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