Is it possible to add tow vectors of unequal magnitudes and get zero? Is it possible to add three vectors of e3qual magnitudes and get zero?

It is possible to add n vectors of equal magnitude and get zero: (True , (b) False

Assertion: The minimum number of vectors of unequal magnitude required to produce zero resultant is three. Reason: Three vectors of unequal magnitude which can be represented by the three sides of a triangle taken in order, produce zero resultant.

Minimum numbar of vectors of unequal magnitudes which can give zore resultant are

Assertion: The minimum number of non-coplanar Vectors whose sum can be zero, is four Reason: The resultant of two vectors of unequal magnitude can be zero.

Is it possible to get zero vector as a resultant of three non-coplanar vectors ? Is the same possible in case of four non-coplanar vectors?

The minimum number of vectors of equal magnitude required to produce zero resultant, is

Minimum number of two coplanar vectors of equal magnitude whose vectors sum could be zero, is: