WebLet the number of terms in the A.P. be n. Then, t n = 101 Since t n = a + (n – 1)d, 101 = 1 + (n – 1) (2) ∴ 101 = 1 + 2n – 2 ∴ 101 = 2n – 1 ∴ 102 = 2n ∴ n = 102 2 = 51 Now, S n = n t t n n 2 ( t 1 + t n) ∴ S 51 = 51 2 ( 1 + 101) = 51 2 ( 102) = 51 × 51 = 2601 ∴ The sum of odd natural numbers from 1 to 101 is 2601. WebWe know that the formula for the nth term is t n=a+(n−1)d, where a is the first term, d is the common difference. It is given that the nth term is t 15=55 and the first term is a=13, …
Algebra Test No. 2 PDF - Scribd
WebDefinition 1: A mathematical sequence in which the difference between two consecutive terms is always a constant and it is abbreviated as AP. Definition 2: An arithmetic sequence or progression is defined as a sequence of numbers in which for every pair of consecutive terms, the second number is obtained by adding a fixed number to the first one. WebJul 26, 2024 · Oligonucleotides have many important applications, including as primers in polymerase chain reactions and probes for DNA sequencing. They are proposed as a diagnostic and prognostic tool for various diseases and therapeutics in antisense therapy. Accordingly, it is necessary to develop liquid chromatography and solid phase extraction … cummins sales and service altoona pa
For an A.P. T10 = 1/20; T20 = 1/10 Find sum of first 200 ... - Sarthaks
WebEasy Solution Verified by Toppr Correct option is C) a=6d=3 S n=2n[2a+(n−1)d] S 10= 210[2×6+(10−1)3] =5[12+27] =5×39=195 Was this answer helpful? 0 0 Similar questions In an A.P a n=20&S n=399 find S n−1 Medium View solution > t 1+t 3=22 and t 1×t 3=85 find S 10. Easy View solution > View more Get the Free Answr app WebFeb 20, 2024 · A merchant borrows Rs.1000 and agrees to repay its interest Rs.140, with principal in 12 monthly instalments. Each instalment being less, than the preceding one by … Web9) The solution of the equation x-y=10 and x+y=70 is -----., A) (40,30), , B) (30,40), , C) (10,60), , D) (50,20), , 10) Find the value of Dx for the equation 4𝑥 + 3 𝑦 = 19 and 4 𝑥 −, 3 𝑦 = −11, A) 24, , B) 0, , C) −24, , D) 108, , Q. 1 B) Each of 1 mark, 1) State with reason whether the equation 3𝑥 2 … easy adult arts and crafts