Question

find the 17th term and r^th term of the series 12,9,3.....

Answer 1

Answer:

-36

Step-by-step explanation:

a=12

d=9-12=-3

n= 17

17th term = a+ (n-1)d

=12 + (17-1)-3

=12 +(16×(-3))

=12 - 48

=-36

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