Recent content by Huygen121

what is the use of negative axis in graph? simple question and it will clear my all doubts

can quadrants represent direction?

but what exactly (-) minus sign indicates as we know dimensions are same to + angle ?

can the tan of an angle be negative,if so,then how?

can you give me an example related to it by just using the tan x and putting value in it?

Can you please tell me the reason behind this relation:- y=tanx Domain:- R-{(n*180) + 180/2),n ε Z(integers))} but how can n belong to integer because if n belong to integer than an angle would be negative and i don't think so that negative angles are there,i think that in place of...

My question is just to ask whether the operations like:- AUB is a relation or not? in our book it is written that the relations of two sets should be subset of the cartesian product of two sets but i think that relations are those which connects two sets and that can be AUB(A union B)...