Question

А = (a,b,(c,d)∅) 1) (а)⊂А или 2)(а)⊄А

Answer 1

Сорян, я не знаю км это решить

Answer 2

Ответ:

я не знаю

прости ок

Пошаговое объяснение:

Answer 3

To determine whether the set (a) is a subset of A or not, let's first clarify the notation used in A.

A = (a, b, (c, d)∅)

It seems like A is an ordered 3-tuple (also known as a triplet) consisting of three elements: a, b, and (c, d)∅. The third element is itself a set containing two elements, c and d. (∅) represents an empty set.

Now, let's consider the set (a):

(a) is a singleton set containing a single element, which is 'a'.

To check if (a) is a subset of A, we need to see if all the elements of (a) are also present in A.

(a) = {a} A = {a, b, (c, d)∅}

Since 'a' is present in A, (a) is indeed a subset of A.

So, the correct statement is:

1. (а)⊂А (The set (a) is a subset of A)