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nadezda [96]
3 years ago
10

(a) What is the difference between a sequence and a series? A series is an ordered list of numbers whereas a sequence is the sum

of a list of numbers. A sequence is an ordered list of numbers whereas a series is an unordered list of numbers. A sequence is an unordered list of numbers whereas a series is the sum of a list of numbers. A series is an unordered list of numbers whereas a sequence is the sum of a list of numbers. A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers. (b) What is a convergent series? What is a divergent series? A series is convergent if the nth term converges to zero. A series is divergent if it is not convergent. A convergent series is a series for which lim n → ∞ an exists. A series is convergent if it is not divergent. A series is divergent if the nth term converges to zero. A series is convergent if it is not divergent. A series is divergent if the sequence of partial sums is a convergent sequence. A series is convergent if it is not divergent. A series is convergent if the sequence of partial sums is a convergent sequence. A series is divergent if it is not convergent.
Mathematics
2 answers:
Kruka [31]3 years ago
8 0

Answer:

See below.

Step-by-step explanation:

(a)  A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers.

(b) A series is convergent if the sequence of partial sums is a convergent sequence (that is tends to a limit).  A series is divergent if it is not convergent.

trapecia [35]3 years ago
6 0

Answer:

  • (a) A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers.
  • (b) A series is divergent if the sequence of partial sums is a convergent sequence. A series is divergent if it is not convergent.

Step-by-step explanation:

A sequence is a list of ordered numbers. For example, 1, 2, 3, 4, 5.... is a sequence. The numbers are listed in a specific order when we count. In contrast, a series is the sum of the numbers in a sequence. For this multiple choice, choose the best answer that defines what a sequence is.

(a) What is the difference between a sequence and a series?

  • A series is an unordered list of numbers whereas a sequence is the sum of a list of numbers.
  • A sequence is an ordered list of numbers whereas a series is the sum of a list of numbers.
  • A series is an ordered list of numbers whereas a sequence is the sum of a list of numbers.
  • A sequence is an ordered list of numbers whereas a series is an unordered list of numbers.
  • A sequence is an unordered list of numbers whereas a series is the sum of a list of numbers.

When working with sequences and series, we look at what happens at negative and positive infinity. When a series converges, it approaches a finite number. When a series diverges, it does not approach a finite number but infinity.

(b) What is a convergent series? What is a divergent series?

  • A series is divergent if the nth term converges to zero. A series is convergent if it is not divergent.
  • A series is convergent if the nth term converges to zero. A series is divergent if it is not convergent.
  • A convergent series is a series for which lim n → ∞ an exists. A series is convergent if it is not divergent.
  • A series is convergent if the sequence of partial sums is a convergent sequence. A series is divergent if it is not convergent.
  • A series is divergent if the sequence of partial sums is a convergent sequence. A series is divergent if it is not convergent.
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Answer:

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Step-by-step explanation:

Using the characteristic equation you can express a differential equation of order n as an algebraic equation of degree n:

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This differential equation will have a characteristic equation of the form:

a_nr^n+a_n_-_1r^{n-1}+...+a_1r+a_o=0

Now, you can classify the solution for a differential equation using a simple method. In order to do it, you just need to use the discriminant.

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  • If the discriminant is equal to zero, the solution is critically damped

So, given the differential equation:

-3y''-3y+3y=0

Which has characteristic equation of the form:

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The quadratic polynomial of the form:

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Has discriminant:

Disc=b^2-4ac

In this case:

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So:

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In this case:

Disc=45>0

Therefore the solution is over-damped.

Now, given the differential equation:

-2y''-4y'+1y=0

Which has characteristic equation of the form:

-2r^2-4r+1=0

The quadratic polynomial of the form:

ar^2+br+c=0

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Disc=b^2-4ac

In this case:

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So:

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Therefore the solution is over-damped.

Finally, given the differential equation:

1y''+7y'+5y=0

Which has characteristic equation of the form:

1r^2+7r+5=0

The quadratic polynomial of the form:

ar^2+br+c=0

Has discriminant:

Disc=b^2-4ac

In this case:

a=1\\b=7\\c=5

So:

Disc=(7)^2-4(1)(5)=49-20=29

In this case:

Disc=29>0

Therefore the solution is over-damped.

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Answer:

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Step-by-step explanation:

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kompoz [17]

Answer:

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Step-by-step explanation:

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