The sum of first nn terms of an AP is given by Sn=4n2+nSn=4n2+n. Find that APAP. AcademicMathematicsNCERTClass 10 Given: Sn=4n2+nSn=4n2+n To do: We have to find the AP. Solution: Let us take sum upto 1 term S1=4(1)2+(1)=4+1=5S1=4(...
Sum of first two terms = S2= 4(2) -(2)2=8-4 = 4Second term, a2 =S2-S1 = 4 -3= 1Common difference, d=a2-a =1-3 =-2Nth term, an =a+(n- 1)d= 3 + (1-1)(-2)= 3-2n+2= 5- 2nTherefore, a3 =5-2(3) = 5-6 =-1a10 =5-2(10) =5-20=-15Hence, th...
百度试题 结果1 题目If the sum of first n terms of an AP is An+Bn^2 where A and B are constants, the common difference of AP will be ( ) A. A+B B. A − B C. 2A D. 2B 相关知识点: 试题来源: 解析 D
Find the sum of first sixteen terms of the AP. 相关知识点: 试题来源: 解析 【解析】Solution: From the given statements, we canwrite,Anda3×a7=8 ...()By the nth term formula,an=a+(n-1)dT hird term, a3=a+(3-1)da3=a+2d...()And Seventh term, a7 = a + (7 -1)da7=a+6...
Let there be nn terms in the given A.P. This implies, l=an=−43+(n−1)(13)l=an=−43+(n−1)(13) 413=−43+(n−1)13413=−43+(n−1)13 3×4+13=−4+(n−1)33×4+13=−4+(n−1)3 12+1=−4+n−112+1=−4+n−1 ...
Hint:We can see that the given series in the problem follows an Arithmetic Progression (AP). We find the ${{n}^{th}}$ term of the series by using the first term and common difference of the given series. Once, we find the ${{n}^{th}}$ terms, we...
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3. What is the formula for finding the sum of the first n terms? The formula for finding the sum of the first n terms depends on the type of sequence. For arithmetic sequences, the formula is Sn = (n/2)(a1 + an), where n is the number of terms, a1 is the first term, and...
N-terminal domains[7]. SUMO, a member of the Ubl (ubiquitin-like proteins) family shares under 20% identity with ubiquitin, and SUMO-2/3 are 95% identical to each other and 50% identical with SUMO-1[7]. SUMO was first detected in mammals as a protein covalently bound to the GTPase ...