[Video Solution] If a_r = \cos 2rπ \over 9 + i\sin 2rπ \over 9, r = 1, 2, 3, ....., i = √ -... | ASPIRE STUDY

Name: [Video Solution] If a_r = \cos 2rπ \over 9 + i\sin 2rπ \over 9, r = 1, 2, 3, ....., i = √ -... | ASPIRE STUDY
Uploaded: 2026-02-15T22:36:27+00:00
Description: If a_r = \cos 2rπ \over 9 + i\sin 2rπ \over 9, r = 1, 2, 3, ....., i = √ - 1 , then the determinant \left| \matrix a_1 & a_2 & a_3 \cr a_4 & a_5 & a_6 \cr a_7 & a_8 & a_9 \cr \right| is equal to : | Watch the step-by-step video solution for this NIMCET PYQ.

If a_r = \cos 2rπ \over 9 + i\sin 2rπ \over 9, r = 1, 2, 3, ....., i = √ - 1 , then the determinant \left| \matrix a_1 & a_2 & a_3 \cr a_4 & a_5 & a_6 \cr a_7 & a_8 & a_9 \cr \right| is equal to : | Watch the step-by-step video solution for this NIMCET PYQ.

Published: 2026-02-15T22:36:27+00:00 Thumbnail: Open Page: https://www.aspirediary.com/library/video/12726/if-a-r-cos-2r-over-9-i-sin-2r-over-9-r-1-2-3-i

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