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# minimum value of   modulus of  (a+bω+cω2 ),wherea,b,c r all not equal integers & ( ω is not equal to 1) is a cubic root of unity is....(IIT-JEE-2005)please give detail explanation with every step...

Grade:11

## 1 Answers

Badiuddin askIITians.ismu Expert
147 Points
11 years ago

Dear Rishi

steps

1 put value of w and w2

2 arange in x+iy form

3 use modulus formula

4 simplify it

5 since number are integer and not all equal so take a=b=1 it will make one bracket zero and and take c=2

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