Find The 9th Term Of Arithmetic Sequence 12,24,36

Find the 9th term of arithmetic sequence 12,24,36

 

Answer:

a9=108

Step-by-step explanation:

nth term:

an=a1+(n-1)d

a1=12

d=12

an=12+(n-1)12

an=12+12n-12

Nth Term: an=12n

Find a9

a9=12(9)

a9=108

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