Math, asked by srieerejutha, 8 months ago

in an A.P 21, 18, 15 ........-18 find the 28th term from last

Answers

Answered by chms2005

1

Here.., l= -18 a= 21 n=28 d = (18-21= -3)
T28= l-(n-1)d
-18-(28-1)-3
=63

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