what is a prime number
a whole number greater than 1 that cannot be exactly divided by any whole number other than itself and
what does that n looking symbol mean in sets
(A ∩ B) = The number of elements that are common to both A and B
what does the u looking symbol mean in maths
just everything
what does ‘ mean in sets
s a set that contains the elements present in the universal set but not in set A
what does \ mean in maths
so like if it was q\p you take away everything in p and whatever is in q is your answer
what does the # mean
the number