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If w is a complex cube root of unity, th...

If `w` is a complex cube root of unity, then value of `=|a_1+b_1w a_1w^2+b_1c_1+b_1 w a_2+b_2w a_2w^2+b_2c_2+b_2 w a_3+b_3w a_3w^2+b_3c_3+b_3 w |` is a. 0 b. `-1` c. `2` d. none of these

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