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The third term of a GP is 45 and the fifth term is 405 find the GP if the common ratio is positive ​

 Feb 21, 2021
 #1
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45 *r     * r   = 405

r = 3

 Feb 21, 2021
 #2
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Borrowing on the  guest's answer....the GP  is

 

3   15    45    135    405

 

 

cool cool cool

 Feb 21, 2021
edited by CPhill  Feb 21, 2021

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