The sequence below is another example of an arithmetic sequence. In this case the constant difference is 3. You can choose anytermof thesequence, and add 3 to find the subsequent term. A General Note: Arithmetic Sequence Anarithmetic sequenceis a sequence that has the property that the differ...
Example 2: In an arithmetic sequence a, the sum of first n terms is Sn. I fS_3=6 , a_1=4 , find the common difference d. It is ( ).(A)1( B 5/3(C)-2(D)3 相关知识点: 试题来源: 解析Solution: (C) Method 1: By formula(3), we have d3 1 3 1 3 1 2 3-1 2 2...
【题目】Example 9:In an arithmetic sequence a,,as=-6,and ag =0.Find a,in terms of n. 答案 【解析】 Solution: Let the common difference of the arithmetic se- quence be d. We are given that a =-6,a6 =0. [a1+2d=-6 Therefore la1+5d=0 Solving the system of equations,we ...
Arithmetic sequences can also have an infinite number of terms. For example, the first sequence above with an infinite number of terms would be 12, 15, 18, ... and that sequence continues to infinity. Arithmetic Mean An arithmetic sequence has a corresponding series that adds all the terms ...
An arithmetic sequence is one in which each term is separated from the one before it by a constant that you add to each term. In the first example, the constant is 3; you add 3 to each term to get the next term. The second sequence isn't arithmetic because you can't apply this ...
It is found by finding the first and last terms in the section of the sequence (using the general term formula), adding those up, multiplying that result by the number of terms, then dividing by 2. What is arithmetic sequence example? An arithmetic sequence example is one where there is ...
Problem 15Let S, bethe sum of the first n tems of an arithmetic sequence that has a commondifference of 2. The quotient $$ \frac { S _ { 3 n } } { S _ { n } } $$r does not depend on n.What is $$ S _ { 2 0 } $$s?D(A) 340 (B) 360 (C) 380 (D) 400 (E...
In an arithmetic sequence $$ a _ { n } $$,$$ a _ { 1 } + a _ { 3 } + a _ { 5 } = 1 0 5 , a _ { 2 } + a _ { 4 } + a _ { 6 } = 9 9 . $$Find $$ a _ { 2 0 } $$o. A.-1 B.1 C.2 D.3 E.4 相关知识点: 试题来源: 解析 B...
For example, an ADD instruction will change the flags as described in Table 4.3. Table 4.3. The Arithmetic Flags as Modified by ADD The carry flag (CF) is set when there has been a carry out of the high-order bit of the result. The overflow flag (OF) is set when a bit of ...
For example, the following instruction loads the EAX register with zero. MOV EAX, 00 The maximum value of an immediate operand varies among instructions, but it can never be greater than 232. The maximum size of an immediate on RISC architecture is much lower; for example, on the ARM ...