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
qaws [65]
2 years ago
15

What is the derivative of 5cos^2(pi)(t)?

Mathematics
1 answer:
Eva8 [605]2 years ago
3 0
<span>i assume you mean 5cos^2((pi*t)) in which case; i would use the chain rule, subs u=cos(pi*t), so you have (i presume it's y), y=5u^2 dy/du = 10u and du/dt=-pi*sin(pi*t) Multiply them together, dy/dx = 10u * -pi*sin(pi*t) replace u=cos(pi*t) dy/dx=-10*pi*cos(pi*t)*sin(pi*t) And you could then use the relation that sin(2x)=2sin(x)cos(x) so dy/dx=-5*pi*sin(2*pi*t) You could alternatively use the relation that 2cos(2x)=cos^2(x)+1 and rearrange for cos^2(x) [x being pi*t] .. which is a better way if you know how to do it .. hope this helps :)</span>
You might be interested in
Find the area. Show formulas, work, and label your answer.​
egoroff_w [7]

Answer:

34.1

Step-by-step explanation:

8 4/5 is not needed. The other two will given you the answer.

Area = 1/2 * b * h

b = 12 2/5 = 12.4

h = 5 1/2 = 5.5

Area = 1/2 * 12.4 * 5.5

Area = 34.1 square feet.

6 0
2 years ago
Please answer!!!!!! will mark brainliest
timofeeve [1]

Answer:

The answer is 2/5 or 5.25

Step-by-step explanation:

5 sections so out of 5 and it said A or B so it is 2/5

5 0
2 years ago
X x 2 divided by 4 equals
fiasKO [112]

Answer:

I think it's 2x/4 (1x/2 if simplified). if it's multiple choice that's what I'd go with and if that answer is wrong then sorry

Step-by-step explanation:

x•2 is 2x because you don't know the value x and you still have to divide by four. when simplified, 2/4 is 1/2 so it'd be 1x/2

8 0
3 years ago
A plane flew 500 miles in 40 minutes. How long would it take to fly 1 mile
mina [271]
I believe it’s 12.5 miles
3 0
2 years ago
Express 3/8 in thirty-seconds
Doss [256]
The answer is 12/32 i believe.
6 0
2 years ago
Other questions:
  • Triangle XYZ, XY= 80, ZY= 64 XZ= 48 what is the cosine
    11·1 answer
  • Please help no one answers my questions :'(
    12·1 answer
  • The slope of line m is 7/8. If n⊥m, what is the slope of line n?
    6·1 answer
  • Write a short statement that expresses a possible relationship between the variables. (size of file, time to download the file)
    9·1 answer
  • Which polynomial is a product of (3x+2) and (x-7)
    12·1 answer
  • What is 3 / 1 - 1/2
    10·1 answer
  • !Extremely Urgent!
    14·1 answer
  • Solve the inequality. Graph the solution.<br><br> −8 ≤ z + 6.4
    6·2 answers
  • Ethan says it would require more than 100 moons to equal the mass of the Earth. Is this correct? Support your answer with your w
    5·1 answer
  • what are the solutions to this polynominal when s(x) =0 s(x) (3x^2 + 17x+10 )(x-7)(4x-3) enter your answers in the boxes, from l
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!