(1/5) ÷ (7/5) = (1/5) × (5/7) = 1/7
Answer:
Step-by-step explanation:
1)
2)
3)
4)
Answer:
540 inches
Step-by-step explanation:
15 yards(3 feet/1 yard)(12 inches/1 foot)= 540 inches
Answer:
a). converges
b). diverges
c). converges
Step-by-step explanation:
{ } = { }
Using radio test,
L =
=
=
=
= |r|
Therefore, converges in |r| < 1
a). r = 1/5
This sequence is monotonically decreasing and bounded.
0 < < 1
Hence, { } converges.
b). r = 1
{ } = { n }
This sequence is monotonically increasing sequence which is not bounded.
Hence, { } diverges.
c). r = 1/6
This sequence is monotonically decreasing and bounded.
0 < < 1
Hence, { } converges.
For |r| < 1, the converges.