if any one of the vectors is a null vector or if A is the angle between the two vectors then tanA =1
Yes, they are.
The products.
The ratios are not equal.
No. A cross product is just a way of simplifying a proportion. If the cross product aren't equal, it follows logically that the proportion isn't equal.
Their cross products are equal.
They're equal
The fractions are proportional and their cross products are equal
If x is the angle between the two vectors then the magnitudes are equal if cos(x) = sin(x). That is, when x = pi/4 radians.
If 'A' and 'B' are vectors, and their magnitudes are equal, andtheir directions are opposite, then their vector sum is zero.
When they are equal in magnitude but opposite in direction.
only if the vectors have the same direction
The cross products are equal. If there is a variable you can make that variable so it will make the proportion equal. 1/2=x/14 1x14=2x So x=7