2/3 , 3/4 , 4/5 , 5/6 , ...
a)write down the next 2 terms of the seqence,
b) determine the general term T(n) of the sequence,
c) write down the 8th term and the 10th term of the sequence.
thx thx thx!~
f.5 maths---- sequences
2006-10-15 7:28 pm
回答 (4)
2006-10-15 7:31 pm
✔ 最佳答案
(a) 6/7, 7/8(b) T(n)=(n+1)/(n+2)
(c) T(8) = 9/10
T(10) = 11/12
2006-10-15 8:33 pm
a)
6/7.7/8
b)
T(1)=2/3=(1+1)(1+2)
T(2)=3/4=(2+1)/(2+2)
so,T(n)=(n+1)(n+2)
c)
T(8)=(8+1)/(8+2)=9/10
T(10)=(10+1)(10+2)=11/12
6/7.7/8
b)
T(1)=2/3=(1+1)(1+2)
T(2)=3/4=(2+1)/(2+2)
so,T(n)=(n+1)(n+2)
c)
T(8)=(8+1)/(8+2)=9/10
T(10)=(10+1)(10+2)=11/12
2006-10-15 7:37 pm
(a) 6/7, 7/8
(b) T(n)=(n+1)/(n+2)
(c) T(8) = 9/10
T(10) = 11/12
(b) T(n)=(n+1)/(n+2)
(c) T(8) = 9/10
T(10) = 11/12
2006-10-15 7:34 pm
a)6/7,7/8
b)n+1/n+2
c)11/12,12/11
b)n+1/n+2
c)11/12,12/11
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