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]
3 years ago
15

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

Mathematics
1 answer:
Eva8 [605]3 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
90 miles on 5 gallons of gas?
fiasKO [112]

Answer:

18 miles per gallon

90/5=18

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
You buy a house for $230,000. It depreciates 3% per year. How much is it worth in 5 years?
Nookie1986 [14]
I honestly don’t know the equation but I just took the starting price, $230,000 and multipled it by .03 which was 6,900 and subtracted that from 230,000: 223,190. I repeated that 5 times. The answer I got is 197,508.83
3 0
2 years ago
4 - 1 can be rewritten as what addition expression?​
Tanzania [10]

Answer:

3

<h3>it will be the answer </h3>

hope it helps

6 0
2 years ago
Read 2 more answers
( 100 POINTS FOR EVERYTHING )
Lina20 [59]

Answer:

3. x+8

4. 6y

5. 1/2m

6. 50/h

7. 7-n

8. 15+x

9. 2t/12

10. p² -3

11. 2k-7

12. 3(w+5)

13. C

14. The error was it was written that you would subtract the pages read by pages in the article which is incorrect. You would subtract pages total (5) by pages read (p). So it is 5-p.

15. 4v

16. 16/p

17. 2.97/p

18. 20+j

19. 7-d

20. m/60

21. y/12

22. unit rate-8

23. unit rate-1.5

24. unit rate-2.4

25. unit rate-6.8

26. C

3 0
3 years ago
ASAP PLZ HELP WILL MARK BRAINLIST IF U WANT TO FIRST PERSON WHO ANSWERS RIGHT
photoshop1234 [79]

Answer:

15.0

Step-by-step explanation:

Square root entire equation (-8 - 7)^2 + (-5 + 4)^2

8 0
3 years ago
Read 2 more answers
Other questions:
  • Hi:) I tried using the sine rule but I couldn’t get the ans :( anyone able to help? Thank you:)!!
    7·1 answer
  • Convert 4 feet to inches
    8·2 answers
  • What is the answer plz
    10·1 answer
  • If 5+20-22-3x = 10-2-2x + 5, what is the value of x?
    7·1 answer
  • Please answer quickly THIS IS FOR A TEST
    6·1 answer
  • A rectangular prism is 4.1 feet long, 4.3 feet wide and 14 feet high. what is the volume of the rectangular prism
    9·1 answer
  • Which of the following needs to be true in order to show that AXYZ - ADEF by
    10·1 answer
  • Please Help! Lateena solved an equation. Explain why or why not her solution is correct.
    9·1 answer
  • ) In each diagram, line p is parallel to line f, and line t intersects lines p and f. Based
    7·1 answer
  • there are 96 boys and 120 girls in grade 9. write down the ratio of the number of boys to the number of girls in the class.​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!