2010010503 Level: AFirst five terms of four sequences are given. One of these sequences is not an arithmetic sequence. Choose this sequence.1, −1, 1, −1, 15, 5, 5, 5, 57, 12, 17, 22, 27−12, 0, 12, 1, 32
2010010504 Level: AFirst five terms of four sequences are given. One of these sequences is not an arithmetic sequence. Choose this sequence.2, 0, 2, 0, 27, 7, 7, 7, 76, 11, 16, 21, 26−32, −12, 12, 32, 52
2110010501 Level: AOne of the given graphs shows the first six terms of an arithmetic sequence. Choose this graph.
2110010502 Level: AOne of the given graphs shows the first six terms of an arithmetic sequence. Choose this graph.
9000065301 Level: AFind the recurrence equations for the arithmetic sequence with the first term a1=4 and the common difference d=−2.a1=4; an+1=an−2, n∈Na1=4; an+1=a1−2, n∈Nan=4+an+2, n∈Nan+1=an+2, n∈N
9000065302 Level: AFind the formula for the n-th term of an arithmetic sequence with the first term a1=1 and the second term a2=−2.an=4−3n, n∈Nan=1−2n, n∈Nan=−2+n, n∈Nan=3+2n, n∈N
9000065303 Level: AFind the recurrence equations for the arithmetic sequence with the second term a2=7 and the common difference d=4.a1=3; an=an−1+4, n∈Na1=7; an+1=an+4, n∈Nan=7+an+4, n∈Nan+1=an+7, n∈N
9000065304 Level: AFind the first term a1 and the common difference d of the arithmetic sequence (5+2n)n=1∞.a1=7; d=2a1=5; d=2a1=3; d=−2a1=2; d=5
9000065305 Level: AIn the arithmetic sequence given by the relations a1=π, an+1=an+2π find a13.a13=25πa13=27πa13=26πa13=24π
9000065306 Level: AIn the arithmetic sequence given by the second term a2=−3 and the fifth term a5=3 find a11.a11=15a11=22a11=19a11=27