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jason9394
05.03.2021 •
Computers and Technology
Given an array A[1..n] representing a sequence of n integers, a subsequence is a subset of elements of A, in the same order as they appear in A. A subsequence is monotonic if it is a sequence of strictly increasing numbers. Define LMS(i) to be the length of a longest monotonically increasing subsequence of A[1..i] that must have A[i] as its last element. Write a recurrence for LMS(i) and convert into a dynamic program that calculates LMS(i) for i
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Ответ:
Step-by-step explanation:
Given
Required
What dimension of the cylinder minimizes the cost
The volume (V) of a cylinder is:
Substitute 100 for V
Make h the subject
The surface area (A) of a cylinder is:
Where
So, the cost of the surface area is:
Substitute![h = \frac{100 }{\pi r^2}](/tpl/images/1083/3014/59e63.png)
Open bracket
To minimize, we differentiate C w.r.t r and set the result to 0
Set to 0
Collect Like Terms
Cross Multiply
Make
the subject
Take cube roots of both sides
Recall that:
Hence, the dimensions that minimizes the cost are:
To calculate the cost, we have: