Question

IF n (B) = 52, n(AUB) = 70, n (A intersection B) = 27,
then n(A) = ? ​

Answer 1

Answer:

n(a)+52-27=70

n(a)+25=70

n(a)=70-25

n(a)=45

Answer 2

Answer:

Traditional mathematics involved more heavy manipulation, algebra & calculus problems seemed quite a bit more difficult. Modern mathematics was more focused on mathematical principles rather than heavy manipulation, using a trick like symmetry, algebraic identity, etc.