3 years ago

Clues:

Mathematics

1 answer:

Ann [662]3 years ago

5 0

Answer:

180

Step-by-step explanation:

hehe

2 90

3 60

4 45

5 36

6 30

9 20

90 = 2

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Monica [59]

Answer:

8/3

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Step-by-step explanation:

1 3/5 = 8/5

1 1/5 = 6/5

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3 years ago

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For each $n \in \mathbb{N}$, let $A_n = [n] \times [n]$. Define $B = \bigcup_{n \in \mathbb{N}} A_n$. Does $B = \mathbb{N} \time

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Answer:

No, it is not.

Step-by-step explanation:

The set $C = \mathbb{N} \times \mathbb{N}$ contains every ordered pair of Natural numbers, while B only contains those pairs in which both values in each entry are the same. Therefore, C is a bigger set than B, but B is not equal to C because for example C contains $[1] \times [2]$ and B doesnt because 1 is not equal to 2.