Let Bi(2i,i-1) where I is the element of the integer,find (B2 U B4)

To find the union of B2 and B4, we first need to understand what the terms B2(2*2, 2-1) and B4(2*4, 4-1) mean.

The term Bi(n, k) is a mathematical notation called the binomial coefficient, also known as "n choose k". It represents the number of ways to choose k objects from a set of n distinct objects without considering their order.

So, B2(2*2, 2-1) means finding the binomial coefficient of two objects taken 1 at a time, which can be calculated as follows:

B2 = (2*1)/(1*1) = 2

Similarly, B4(2*4, 4-1) means finding the binomial coefficient of four objects taken 3 at a time:

B4 = (4*3*2)/(3*2*1) = 4

Now, to find the union of B2 and B4, we simply list the elements in both sets without repetition. In this case, B2 = {2} and B4 = {4}.

Therefore, the union of B2 and B4 is {2, 4}.