Tīmeklis2024. gada 3. apr. · Complete step-by-step answer: The ratio of the first n terms of two AP’s is given to us as (3n – 13) : (5n – 1). Let the first term of the one of the AP’s be a 1 and the common difference be d 1. Similarly, let the first term of the second AP be a 2 and the common difference be d 2. Tīmeklis2024. gada 30. marts · Transcript. Example 6 The sum of n terms of two arithmetic progressions are in the ratio (3n + 8) : (7n + 15). Find the ratio of their 12th terms. There are 2 AP s with different first term and common difference For the first AP Let first term be a common difference be d Sum of n term = Sn = /2 (2a + (n 1)d) & nth term = …
If the ratio of the sum of n terms of two APs is(7n + 1) : …
TīmeklisPortland cements I 42.5R/SR and I 42.5N (Italcementi Group) were used in this study. ... All mixtures were made with water-to-cement ratio (W/C) of 0.50. The method adopted based on the ... TīmeklisThe sum of n terms of two series in A.P. are in the ratio (3n−13)(5n+21). Find the ratio of their 24 th terms. Medium Solution Verified by Toppr Letsin= 2n[2a+(n−1)D]eqn.(i) andsin= 2n[2A+(n−1)D]eqn.(ii) Theirratiois(3n−13):(5n+2i) ⇒ snsn= [2A+(n−1)D][2a+(n−1)d] = (5x+21)(3n−1) eqn.(iii) ∴Ratioof24 thterm portable street light pole
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