Предмет: Математика, автор: Alex17minig

сколько комбинаций в кубике рубика 4х4?

Ответы

Автор ответа: mmasha1ц
0
Число возможных различных состояний кубика Рубика равно 43 252 003 274 489 856 000. Это число не учитывает то, что ориентация центральных квадратов может быть разной. С учётом ориентации центральных квадратов количество состояний получается в 46/2=2048 раз больше, а именно 88 580 102 706 155 225 088 000 состояний. Однако, при сборке кубика обычно не учитывают ориентацию центральных квадратов, поскольку на большинстве кубиков нет обозначений, которые позволяли бы определить оную.
Автор ответа: Alex17minig
0
это 3х3 получается, по тому что в кубике 4х4 центры занимают почти четверть сборки.
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GRAMMAR

Tick () A, B, or C to complete the sentences.

Example: My sister _____ Italian.

A speak  B speaks  C do speak 

1 I need _____ to drive a car this summer.

A learning  B learn  C to learn 

2 I don’t mind _____ time with my partner’s family.

A to spend  B spend  C spending 

3 We stopped at a café _____ a drink and a break.

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4 _____ about everything is the best way to have a good relationship.

A Talking  B Talk  C The talking 

5 It’s interesting _____ your partner’s brothers and sisters.

A meet  B to meet  C for meet 

6 I don’t feel like _____ breakfast this morning.

A having  B have  C to have 

7 You _____ pay to go into that museum. It’s free.

A don’t must  B mustn’t  C don’t have to 

8 You _____ walk home at night. It’s dangerous.

A should  B shouldn’t  C shouldn’t to 

9 I think they _____ buy a new car. Their old one looks terrible.

A should  B should to  C mustn’t 

10 Nina couldn’t come to my birthday party, but I went to _____.

A her  B she’s  C hers 

11 If we _____ queues, the other queue will move quicker.

A changed  B change  C will change 

12 She’ll be really happy if we _____ her to our party.

A invited  B invite  C would invite 

13 If they _____ arrive in five minutes, we’ll go.

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14 How many films _____ Johnny Depp made?

A did  B have  C has 

15 When _____ your parents meet?

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16 What _____ she do if she lost her job?

A will  B would  C did 

17 If we _____ work tomorrow, we’d stay longer at the party.

A have to  B didn’t have to  C don’t have 

18 _____ you stop working if you were rich?

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19 My mum was a teacher _____ 25 years before retiring.

A for  B since  C during 

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