00:00Question says, if for two vectors A and B, A cross B is equal to 0, the vectors A are
00:15perpendicular to each other, B are parallel to each other, C act at an angle of 60 degree,
00:25B act at an angle of 30 degree, is A cross B is equal to AB sine theta with its unit vectors.
00:46Here, A cross B is given as 0, so it will be 0 in that condition when the value of sine
01:04theta will be 0, so sine theta will be 0 at 0 degree, means when vectors are parallel
01:18to each other, then the angle between them will be 0 degree. So, A cross B will be equal
01:35to AB sine, the value of theta is 0, 0 degree with its unit vector, as the value of sine
01:450 degree is 0, so A cross B will be AB into 0 with its unit vector, so this will become
01:59as 0. So, A cross B will be 0 when the vectors are parallel with each other. So, the correct
02:12option will be B are parallel to each other.
02:27If vectors are perpendicular to each other, then A cross B will be maximum because here angle
02:35will be 90.
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