find a.p. : if a1=10,a3=30,a8=?
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Answered by
2
Step-by-step explanation:
a1=10, a3= 30, a8=80
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Answered by
0
Answer:
a1=10 that means a=10
a3 a+2d=10+2d=30
d=10
a8=a+7d=10+7*10=80
Step-by-step explanation:
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