If a+1,2a+1,4a-1, are in A. P., then find the value of 'a'.
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(2a+1)-(a+1)=(4a-1)-(2a+1)
=>2a+1-a-1=4a-1-2a-1
=>a=2a-2
=>2a-a=2
=>a=2
hope it may helps
=>2a+1-a-1=4a-1-2a-1
=>a=2a-2
=>2a-a=2
=>a=2
hope it may helps
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