Siddhartha Ghosh last edited by
Ans given zero
Pls confirm if ans zero or option 3
raja last edited by
@siddhartha-ghosh answer would be zero only aslet the answervof the cross product be c so c would be perpendicular to both a and b and now if we take c's dot product with any of a or b it would come zero as angle between c and any of a or b is 90 and cos 90 is zero.