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09-12-2016
Mathematics

contestada

write the explicit formula for the sequence 3,5,7,9,11

Respuesta :

09-12-2016

3+2=5
5+2=7
7+2=9
9+2=11
.
.
.
so d=2
-------------
formula:a(n)=a(1)+(n-1)d
a(n)=3+(n-1)2
a(n)=3+2n-2=2n+1

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