A=-10 d=? N=15 an=18
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3
an=a+(n-1)d
18=-10+(15-1)d
18+10=14d
28=14d
d=28/14
d=2
hope it helps you
18=-10+(15-1)d
18+10=14d
28=14d
d=28/14
d=2
hope it helps you
Answered by
0
I hope this will help you....
D=2
D=2
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