What conclusion can you draw about vectors 
and 
when 
and 
As 
, using scalar product and vector product.
Now 
As cosθ and sinθ cannot be 0 simultaneously So, then either vector a is o or b is 0.
1
What conclusion can you draw about vectors and when and
As , using scalar product and vector product.
Now
As cosθ and sinθ cannot be 0 simultaneously So, then either vector a is o or b is 0.