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The 17th term of an A.P is 5 more than twice it's 8th term. If the 11th term of the A.P Is 43 find the math term.
a₁₇ = 5 + 2a₈ and a₁₁ = 43 we know nth of an A.P. = a + (n-1) d where a = first term d = common difference of A.P therefore a + (17 - 1) d = 5 + 2{ a + (8 - 1 ) d} a + 16 d = 5 + 2a + 14d 2d - a = 5 .......(1)also a + (11 - 1)d = 43 a + 10d = 43 .........(2)solving 1 and 2 gives 12d = 48 d = 4 a = 3hence nth tern would be = 3 + (n-1)4 ans
Dear student Please specify in the question what is math term ? You are asking abouth m th term or math term Regard Vikas
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