Question

If (A x Bl- A - B then angle between A and B is​

Answer 1

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It is 45°. Well just apply the definition.

A×B= A B Sin(x) C^

While A.B=A B Cos(x)

Substitute in the given equation we get AB Sin(x) = AB Cos(x)

Here direction is not taken as we are dealing with magnitude only as per the condition.

Now Sin(x)= Cos(x)

Finally we get Tan(x)= 1

That is x= 45°