Formula Flashcards

1
Q

what are combinations and permutations?

A
  • combinations are where order does not matter
  • permuations are where the order does matter (permutations-positions)
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2
Q

What is the formula relating sin and cos?

A
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3
Q

What is the formula for the sum of an arithmetic sequence?

A
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4
Q

What is the formula for the sum of an geometric sequence?

A
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5
Q

What is the cosine rule angle formula?

A
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6
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7
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9
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10
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12
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13
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14
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15
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16
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17
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18
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19
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20
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21
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22
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23
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24
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25
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26
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27
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28
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66
Q

what is the formula for permuations with repetitions?

you can choose the same option twice

67
Q

what is the formula for permuations not with repetions?

you cannot choose the same option twice

68
Q

what is the formula for combinatorics with repetion?

you can choose the same option more than once like ice cream

69
Q

what is the formula for combinatorics without repetiton?

you can’t choose the same option more than once