plz solve it step by step plz
solve a and b both
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Answer:
(a)
For AP a,b,c
b-a=c-b
2k-1-k-9=2k+7-2k+1
k-10=8
k=18
Ravisonkar:
and b
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Heres ur answer : )
Plsss mark as brainliest
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