Answer :

Here, First term = a = 3/4

Common difference = d = 5/4 - 3/4 = 2/4


To find = 9th term, n = 9


Using the formula for finding nth term of an A.P.,


an = a + (n - 1) × d


an = (3/4) + (9 - 1) × (2/4)


an = 3/4 + 8 × (2/4) = 3/4 + 16/4 = 19/4


9th term of the given AP is 19/4.


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