Web14 apr. 2024 · The team fired Hextall, Burke and assistant general manager Chris Pryor on Friday after the Penguins failed to reach the playoffs for the first time in 17 years. The … WebHow many terms of the A.P. −6,− 211,−5... are needed to get the sum −25? Medium Solution Verified by Toppr A.P =−6,− 211,−5... Here,a=−6, d=− 211−−(6)= 2−11+12= 21 …
How many terms of the A.P. - 6, - 112, - 5 ... are needed to get the ...
Web19 dec. 2024 · ⇒ a + d = 2 and a + 6d = 22 Solving these two equations, we get a = – 2 and d = 4. S n = [2a + (n – 1) d] ∴ S 30 = [2 × (–2) + (30 – 1) × 4] ⇒ 15 (–4 + 116) = 15 × 112 = 1680 Hence, the sum of first 30 terms is 1680. Example 6: Find the sum of all natural numbers between 250 and 1000 which are exactly divisible by 3. Solution. Web29 mrt. 2024 · Ex 5.2, 2 (ii) Choose the correct choice in the following and justify 11th term of the A.P. – 3, – 1/2, 2….. is A. 28 B. 22 C. − 38 D. –48 1/2 Given AP –3, (−1)/2 , 2, …. … scenthound learning
How many terms of the AP: –15, –13, –11,--- are needed to …
WebAP will be –15, –13, –11, –9, –7 So, resulting sum will be –55 because all terms are negative. When n = 11, AP will be –15, –13, –11, –9, –7, –5, –3, –1, 1, 3, 5 So resulting sum will be –55 because the sum of terms 6 th to 11 th is zero. Concept: Sum of First n Terms of an A.P. Is there an error in this question or solution? Webwe need to find the sum of how many terms of the AP is 250 Consider the given information AP = 7 , 11 , 15 . . . . . First term ( a ) = 7 Common difference = ( 2nd term - 1st term ) = ( 3rd term - 2nd term ) => ( 7 - 11 ) = ( 15 - 11 ) => ( 4 ) = ( 4 ) Common difference ( d ) = 4 Using the formula ; Here, a = first term d = common difference WebSolution Calculate the number of terms of the given A.P. Given, 9, 17, 25,... are in A.P. First term ( a) = 9 Common difference ( d) = 17 - 9 = 8 Sum of n terms ( S n) = 636 We know that, Sum of n terms, S n = n 2 2 a + ( n - 1) d Substituting the values in S n, we get scenthound login