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9 Cards in this Set
- Front
- Back
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What does a represent? |
The first term |
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What does r represent? |
common ratio |
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How do you find the common ratio? |
t2/t1 or t3/t2 or t4/t3 or ... |
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How to find the nth term |
a x r^n-1 |
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How do you find the sum total of n number of terms? |
a(1-r^n) / 1-r |
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How do you find the sum to infinity? |
a/ 1-r |
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What is one condition of the sum to infinity? |
-1<r>1 |
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When finding when the sum will exceed a certain amount what will you also have to use? |
The golden rule |
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What happens to the inequality with the golden rule? |
If the base is less than 1, the inequality flips |
