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anonymous
 one year ago
Find an equation for the nth term of the arithmetic sequence.
3, 5, 7, 9, ...
anonymous
 one year ago
Find an equation for the nth term of the arithmetic sequence. 3, 5, 7, 9, ...

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freckles
 one year ago
Best ResponseYou've already chosen the best response.2arithemtic sequences are well known for their common difference

freckles
 one year ago
Best ResponseYou've already chosen the best response.2so first step: find common difference

Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.0@freckles are you help her or should i help her?

Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.0i am busy some other areas

freckles
 one year ago
Best ResponseYou've already chosen the best response.2ok 3, 5, 7, 9, ... common difference can be found be taking a term and subtracting its previous term

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[a_n=a+d(n1) \\ \text{ so } d=2 \\ a_n=a2(n1)\] a is suppose to represent the first term

freckles
 one year ago
Best ResponseYou've already chosen the best response.2what is your first term

freckles
 one year ago
Best ResponseYou've already chosen the best response.2so replacing a with 3 don't replace a_n with anything a_n thing we are finding \[a_n=32(n1)\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2and as you can see we get all the terms when pluggin n=1,2,3,... \[a_1=32(11) \\ a_1=32(0) \\ a_1=3 \\ a_2=32(21) \\ a_2=32(1) \\ a_2=32 \\ a_2=5 \] and so on ,,,

freckles
 one year ago
Best ResponseYou've already chosen the best response.2we will find find that a_n=32(n1) that a_3=7 and a_4=9
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