If a_r= 2r 9 +i 2r 9 , r = 1, 2, 3 …. i= -1 , then the determinant vmatrix a_1&a_2&a_3 _4&a_5&a_6 _7&a_8&a_9...

Question

If a_r= 2r 9 +i 2r 9 , r = 1, 2, 3 …. i= -1 , then the determinant vmatrix a_1&a_2&a_3 _4&a_5&a_6 _7&a_8&a_9 vmatrix is equal to :

Accepted Answer

(C)

JEE Main 2021 Mathematics question