Which table represents the recursive formula?

an = an-1 - 6
A)
n an
1 1
2 -5
3 1
4 -5
5 1
B)
n an
1 2
2 8
3 14
4 20
5 26
C)
n an
1 2
2 -2
3 -10
4 -26
5 -58
D)
n an
1 5
2 -1
3 -7
4 -13
5 -19

20y5 times 2 is 1010 times -2 is -20, plus y

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.