In the following exercises, suppose that p ( x ) = ∑ n = 0 ∞ a n x n Satisfies lim n → ∞ a n + 1 a n = 1 where a n ≥ 0 for each n . State whether each series converges on the full interval (− 1, 1), or if there is not enough information to draw a conclusion. Use the comparison test when appropriate. 61. [T] Plot the graphs of the partial sums S N = ∑ n = 0 N ( − 1 ) n x 2 n + 1 ( 2 n + 1 ) ! For n =3, 5, 10 on the interval [ − 2 π , 2 π ] . Comment on the how these plots approximate sin x as N increases.
In the following exercises, suppose that p ( x ) = ∑ n = 0 ∞ a n x n Satisfies lim n → ∞ a n + 1 a n = 1 where a n ≥ 0 for each n . State whether each series converges on the full interval (− 1, 1), or if there is not enough information to draw a conclusion. Use the comparison test when appropriate. 61. [T] Plot the graphs of the partial sums S N = ∑ n = 0 N ( − 1 ) n x 2 n + 1 ( 2 n + 1 ) ! For n =3, 5, 10 on the interval [ − 2 π , 2 π ] . Comment on the how these plots approximate sin x as N increases.
In the following exercises, suppose that
p
(
x
)
=
∑
n
=
0
∞
a
n
x
n
Satisfies
lim
n
→
∞
a
n
+
1
a
n
=
1
where
a
n
≥
0
for each
n
. State whether each series converges on the full interval (− 1, 1), or if there is not enough information to draw a conclusion. Use the comparison test when appropriate.
61. [T] Plot the graphs of the partial sums
S
N
=
∑
n
=
0
N
(
−
1
)
n
x
2
n
+
1
(
2
n
+
1
)
!
For n =3, 5, 10 on the interval
[
−
2
π
,
2
π
]
. Comment on the how these plots approximate
sin
x
as N increases.
=
Q6 What will be the allowable bearing capacity of sand having p = 37° and ydry
19 kN/m³ for (i) 1.5 m strip foundation (ii) 1.5 m x 1.5 m square footing and
(iii)1.5m x 2m rectangular footing. The footings are placed at a depth of 1.5 m
below ground level. Assume F, = 2.5. Use Terzaghi's equations.
0
Ne
Na
Ny
35 57.8 41.4 42.4
40 95.7 81.3 100.4
Q1 The SPT records versus depth are given in table below. Find qan for the raft 12%
foundation with BxB-10x10m and depth of raft D-2m, the allowable
settlement is 50mm.
Elevation, m 0.5 2
2 6.5 9.5 13 18 25
No.of blows, N 11 15 29 32 30 44
0
estigate shear
12%
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