an=525 a=25 n=26 d=? solution
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Answered by
0
Answer:
20
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Answered by
0
Answer:
d=20
Step-by-step explanation:
a=25
n=26
an=525
an=a+(n-1) d
525=25+25d
25(d+1)=525
d+1=525/25
d+1=21
d=20
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