Why didn’t u use the the contrapositive method x=y method in (b). Now I’m stuck and confused. Like how to know when to use what
Does injective mean total or partial function?
what about dom(f)? please cover that and rand(f) what is that ? how do we find these ?
If f maps A to B, how come f(A1) can be anything but {0}?
Yeah, that and also how is this an answer to the question. The answer demands a function example, he doesn't state one +thetrevtutor can u explain?
shouldnt we take 3 in place of 0
do you teach stats
+shaba supermayn No. I really, really dislike statistics (outside of using R for analyzing experimental data for my own purposes) so I won't be putting a course out for it anytime soon. I'd much rather go through Calc II, III, Vector Calc, Analysis, and other linguistics/logic courses before stats.
If anyone is confused, I'm almost sure he mixed 0 with 3 in the last example, just assume he wrote 3 instead of 0 if you're confused.
this is why I confused. thanks !
and that function is subjective. because both direct a same value.
@@nqkim3912 suRjective
@@illiazviezdin1716 math is subjective
@@locke8412 math is a concept, but a very real one