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snow_lady [41]
3 years ago
13

I need to get a practice test​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
6 0

Answer:

what kind of practice test?

Step-by-step explanation:

i dont understand but if you need help practicing i will help you.

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<h3>           a.  a₁=7,     b.  a_n=7n+1,    c.  a₂₀=141</h3>

Step-by-step explanation:

a.

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c.

 a_{20}=7\cdot20+1=141

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