Statement 1: ( 2 7 )+ ( 4 7 )+ ( 8 7 )=- 12. Statement 2: ( 2 7 )+i ( 2 7 ) is a complex 7th root of unity.

JEE Main Mathematics question

Statement 1: . Statement 2: is a complex 7th root of unity.

(A)Statement 1 is True, Statement 2 is True; Statement 2 is a correct explanation for Statement 1
(B)Statement 1 is True, Statement 2 is True; Statement 2 is not a correct explanation for Statement 1
(C)Statement 1 is True, Statement 2 is False
(D)Statement 1 is False, Statement 2 is TrueCorrect

Answer: (D)

Statement 2 is TRUE: is indeed a primitive 7th root of unity. Statement 1: compute the sum numerically — , ,

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-008050