Math, asked by Anonymous, 1 year ago

solve any 2 question from it and i marked your answer in brainlist and also start to follow you

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Answers

Answered by mathupto12
1
20.
Let d be the common difference
So a2-a1=a3-a2
K+1-k+1=2k+3-k-1
2=k+2
k=0


Anonymous: do one more and i marked your answer in brainlist
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