If `a_(i)`, `i=1,2,…..,9` are perfect odd squares, then `|{:(a_(1),a_(2),a_(3)),(a_(4),a_(5),a_(6)),(a_(7),a_(8),a_(9)):}|` is always a multiple of

If a_(1)a_(2)a_(3)…….a_(9) are in A.P. then the value of |(a_(1),a_(2),a_(3)),(a_(4),a_(5),a_(6)),(a_(7),a_(8),a_(9))| is

If a_(r)= (cos 2r pi + i sin 2r pi)^(1/9) . Then the value of |(a_(1),a_(2),a_(3)),(a_(4),a_(5),a_(6)),(a_(7),a_(8),a_(9))| is

If |(1+a_(1),a_(2),a_(3)),(a_(1),1+a_(2),a_(3)),(a_(1),a_(2),1+a_(3))|=0 then a_(1)+a_(2)+a_(3)=

If a^(r) = (cos 2 r pi + I sin 2 r pi )^(1//9) , then the value of |{:(a_(1), a_(2), a_(3)),(a_(4), a_(5), a^(6)),(a_(7) , a_(8), a_(9)):}| is

(a_(1))/(a_(1)+a_(2))+(a_(3))/(a_(3)+a_(4))=(2a_(2))/(a_(2)+a_(3))

If a_(r) =(cos 2 r pi + i sin 2 r pi)^(1/9) , then the value of |(a_(1),a_(2),a_(3)),(a_(4),a_(5),a_(6)),(a_(7),a_(8),a_(9))| a)1 b)-1 c)0 d)None of these

if a_(r) = (cos 2r pi + I sin 2 r pi)^(1//9) then prove that |{:(a_(1),,a_(2),,a_(3)),a_(4) ,,a_(5),,a_(6)),( a_(7),, a_(8),,a_(9)):}|=0

if a_(r) = (cos 2r pi + I sin 2 r pi)^(1//9) then prove that |{:(a_(1),,a_(2),,a_(3)),(a^(4) ,,a^(5),,a_(6)),( a_(7),, a_(8),,a_(9)):}|=0

For the A.P., a_(1),a_(2),a_(3) ,…………… if (a_(4))/(a_(7))=2/3 , find (a_(6))/(a_(8))

If a_(r)="cos"(2rpi)/9+i "sin"(2rpi)/9 then value of the determinant Delta=|(1,a_(8),a_(7)),(a_(3),a_(2),a_(1)),(a_(6),a_(5),a_(4))| is