Math, asked by govindkumar1727, 1 year ago

Find the 28th term from the end of the ap
6,9,12,15,18,__________,102​

Answers

Answered by dashley
3

Answer:

a = 6 ( first term )

d = 3 ( common difference)

n = 28

formula used:

term = a + ( n - 1)d

term = 6 + 27 × 3

term = 87 (Ans)

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Answered by botanyliker
2

Answer:

a=6

d=9-6=3

an=102

102=6+(n-1)3

102-6=3n-3

96+3=3n

99=3n

n=33

now 28th term from last

33-28+1=6th term

a6=6+(6-1)3

=6+5×3

=6+15

=21

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