``if Tn =2- 3 which term of sequence is.
(a) - 43
(b) - 82
(c) 91''.
2 answers
In a sequence given by Tn = a + b bn the 6th and 13th terms are 22 and 71 respectively. Find the values of a and b.
Your first question makes no sense
your second:
Tn = a + bn
T6 = a + 6b = 22
T13 = a + 13b = 71
subtract them
7b = 49
b = 7
a+6b=22 ---> a + 42 = 49, a = 7
your second:
Tn = a + bn
T6 = a + 6b = 22
T13 = a + 13b = 71
subtract them
7b = 49
b = 7
a+6b=22 ---> a + 42 = 49, a = 7
1 answer