Brookesvillage
Brookesvillage Brookesvillage
  • 25-02-2022
  • Mathematics
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3. What are the first three terms of the Arithmetic Sequence a, = 12 - 2(n - 1)?
11, 10,9
1,2,3
12,10,8
0 10 20​

Respuesta :

semsee45
semsee45 semsee45
  • 25-02-2022

Answer:

12, 10, 8

Step-by-step explanation:

Substitute n = 1, n = 2 and n = 3 to find the 1st, 2nd and 3rd terms of the sequence:

[tex]a_n=12-2(n-1)[/tex]

[tex]\implies a_1=12-2(1-1)=12-2+2=12\\\\ \implies a_2=12-2(2-1)=12-4+2=10\\\\ \implies a_3=12-2(3-1)=12-6+2=8[/tex]

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