If x, 2x + 1, 4x -1, are first three terms of an A.P., then find the fourth term of the A.P.
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Step-by-step explanation:
4th term in A.P = 1st term + 3*common difference
therefore,
4th term = x + 3(2x+1-x)
= x + 3x+3
= 4x + 3. Ans
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