1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kifflom [539]
2 years ago
15

How are periodic phenomena relatively easy to model using trig functions? What makes them difficult to model this way?

Mathematics
1 answer:
Klio2033 [76]2 years ago
6 0

Answer:

Periodic phenomena means that the phenomena has a (almost) constant time period or space period.

As you know, the trigonometric functions cos(x) and sin(x) also have a constant period of 2*pi, so these functions are really useful to model periodic phenomena.

Now, the problem may be that the trigonometric functions may be useful to describe the "periodic" part, but not to describe the actual phenomena.

An example of this can be a square alternating current.

While it has a constant period like a trigonometric function, the trigonometric functions can not really model the "square" part of this current (you know that the sinusoidal functions actually are curves and continuous)

Here comes something called the Fourier Series, that are series of the form:

F(x) = a₀ + ∑(aₙ*cos(nx) + bₙ*sin(nx))

That can be used to model almost any periodic phenomena, but the actual Fourier Series may be hard to construct.

You might be interested in
Which is the best approximation of PX
Aleks [24]

Answer:

We now want to find the best approximation to a given function. This fundamental problem in Approximation Theory can be stated in very general terms. Let V be a Normed Linear Space and W a finite-dimensional subspace of V , then for a given v ∈ V , find w∗∈ W such that kv −w∗k ≤ kv −wk, for all w ∈ W.

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ASAP
Dafna1 [17]

Answer:

Step-by-step explanation:

27.068

28.08

28.15

29.94

6 0
1 year ago
Read 2 more answers
-5r+8r+5 what is the anwser
Ksju [112]

Answer:

-5r + 8r +5

= (-5+8)r+5 (we can calculate number in same variabe)

= 3r +5

hope it helps ^°^

7 0
2 years ago
Read 2 more answers
Look at this expression.
Dafna1 [17]

Answer:

-15x+5

Step-by-step explanation:

Multiply you'll get your solution

5 0
2 years ago
Read 2 more answers
NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at math.
frosja888 [35]

Answer:

b

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • The second side of a triangle is 4cm longer than the first, The third side is 1 less than twice the first, The perimeter is 55cm
    6·2 answers
  • Basic Probability
    5·1 answer
  • In 2010, the General Social Survey asked respondents if they agreed/disagreed with the statement, "Private Enterprise will solve
    10·1 answer
  • A rule for creating a pattern is given in equation form below.
    15·2 answers
  • Denise has 2 hours to spend training for an upcoming race. she completes her training by running full speed the distance of the
    7·1 answer
  • The sales totals at Macy's food store have increased exponentially over the months. Which of these best shows the sales in the f
    9·1 answer
  • A=3 square root of 3<br> B=3<br> C=7<br> D=6
    6·2 answers
  • The bike store marks up the wholesale cost of all of the bikes they sell by 30%. Andre wants to buy a bike that has a price tag
    15·1 answer
  • A rectangle and a parallelogram have the same base and the same height.
    7·1 answer
  • HELP ME OUT HERE 10 POINTS !
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!