Question

if n(A)= 72 n(B)=43 and n(AuB)=100 find n(AnB)​

Answer 1

Answer:

Given,

n(A) = 72

n(B) = 43

n(AuB) =100

Step-by-step explanation:

n(AnB) = n(A) + n(B) - n(AuB)

=72 + 43 - 100

=115 - 100

=15

therefore,n(AnB) = 15

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Answer 2

Step-by-step explanation:

For example, an atom with the quantum numbers 4,1,0 has a principal quantum number of 4. ... The numbers 0 through 3 represent the "s", "p," "d" and "f" subshells, respectively. For example, 1 identifies a "p" subshell. Add the maximum number of electrons that each previous subshell can hold