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Find the middle term of AP -15,-11,-7,-3...49 |
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Answer» Answer: Ans:- 9 Step-by-step explanation: The formula of an A.P. TN = a + (n - 1)d but to find middle:- n/2 therefore: tn = a + (n - 1) X d substituting the values, 49 = -15 + (n - 1)X 4 (n - 1) = 49 + 15 / 4 n - 1 = 16 n = 17 therefore:- n is odd so middle term would be (n+1)/2 = 18/2 = 9 I HOPE this helps out . |
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