If either ` -> a= ->0` and ` -> b= ->0` then ` -> axx -> b= ->0` . Is Is the converse true? Justify your answer with an example.

If either vec a= 0 and vec b= 0 then vec a xx vec b= 0 . Is Is the converse true? Justify your answer with an example.

If either vec a= vec 0 and vec b= vec 0 then vec axx vec b= vec0 . Is Is the converse true? Justify your answer with an example.

If either veca= vec0 or vecb= vec0 , then veca * vecb = 0 But the converse need not be true. Justify your answer with an example.

If either vec a= vec0\ or\ vec b= vec0\ t h e n\ vec adot vec b= vec0 but, the converse need not be true. Justify your answer with an example.

Is 0 a term of the AP 31, 28, 25, …? Justify your answer.

Is 0.2 a root of the equation x^(2)-0.4=0 ? Justify your answer.

Is the position of a star as seen by us its true position? Justify your answer.

A number is divisible by 6 and 8. Is it also divisible by 6 xx 8= 48 ? Justify your answer with the help of an example

Can the following figures be parallelograms. Justify your answer.

Is it possible for rational numbers (a)/(b) and (b)/(a) , both in standard form, to be equal, given that a neb ? Justify your answer with examples.