Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let `veca=a_1hati+a_2hatj+a_3hatk, vecb=b_1hati+b_2hatj+b_3hatk`, and `vecc=c_1hati+c_2hatj+c_3hatk` bethree non-zero vectors such that c is a unit vector perpendicular to both `veca`and `vecb` if angle between `veca`and`vecb` is `pi/3`, then the value of `|[a_1,b_1,c_1],[a_2,b_2,c_2],[a_3,b_3,c_3]|^2` is - Sarthaks eConnect
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Let `veca=a_1hati+a_2hatj+a_3hatk, vecb=b_1hati+b_2hatj+b_3hatk`, and `vecc=c_1hati+c_2hatj+c_3hatk` be  three non-zero vectors such that c is a unit vector perpendicular to both `veca`and `vecb` if angle between `veca`and`vecb` is `pi/3`, then the value of `|[a_1,b_1,c_1],[a_2,b_2,c_2],[a_3,b_3,c_3]|^2` is:

A.

0

B.

`3/4|veca|^2  |vecb|^2`

C.

`|veca|^2  |vecb|^2`

D.

none of these