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Complete the following activity to find the number of terms in the A.P. 1, 3, 5, ...., 149
Here, a = 1, d = .........., `t_(n)` =149.
`t_(n) = ............` (Formula)
`therefore 149 = .............." "therefore 149 = 2n - .........." "therefore n = 75`

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The correct Answer is:
2, a + (n - 1) d, 1 + (n - 1) `xx` 2, -1
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