Substitute a = 3 and r = 4 into T, = ar" - 1 =T, = 3(4)-1
EXERCISE 3
1
15
24 림
E
Answer the questions below for sequences A, B, C and D.
A 3; 15; 75; 375; ... 234 375
1.1.1
B
2
C 2; -6; 18; -54; ... 13 122
D
60; 30; 15; ... 128
1.1 Write down the fifth term in the sequence.
1.2 Determine a formula for the oth term of this sequence.
1.3 Determine the value of the seventh term.
1.4 How many terms are there in the sequence?
unctions below for sequences A, B, C and D.​