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2. an = 3n + 2 , find the 9th term

3. an =4n , find the 3rd term​

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Solution/s:

2.

[tex] a_n = 3n + 2 [/tex]

Substitute [tex]9[/tex] to [tex]n[/tex]:

[tex] a_{(9)} = 3(9) + 2 [/tex]

[tex] a_9 = 27 + 2 [/tex]

[tex] a_9 = 29 [/tex]

[tex] \boxed{\textsf{9th term is }29} [/tex]

3.

[tex] a_n = 4n [/tex]

Substitute [tex] 3 [/tex] to [tex]n[/tex]:

[tex] a_{(3)} = 4(3) [/tex]

[tex] a_3 = 12 [/tex]

[tex] \boxed{\textsf{3rd term is }12} [/tex]

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