Chứng minh lim qn=0 khi n tiến đến dương vô cùng nếu trị tuyệt đối của q<1
1 answer:
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Answer:
The soil of the region A (given in the attachment) must have coarse grain sand and gravel deposits.
Explanation:
The remaining part of the question is attached here
Solution
Most of the aquifers are recharged by rainfall or either the surface water that penetrates through the soil into the ground and reaches the aquifer. Hence, the soil type in these regions must be permeable. Gravel and coarse sand along with medium seize sand particles have high permeability. Hence, the soil of the region A (given in the attachment) must have coarse grain sand and gravel deposits.
Answer:
E. and
.
Explanation:
According to the figure, we have the following conclusions:
1) and
are vertical opposite angles. (
)
2) and
are internal alternate angles. (
)
3) and
are corresponding angles. (
)
4) and
are vertical opposite angles. (
)
But, and
, since
, where
is an acute angle and
is a right angle, and
. Then,
.
Hence, the right answer is E.