subject
Mathematics, 13.03.2020 04:29 treestump090

Use the formula cos(3t)=4cos3(t)-3cos(t) to show that we can trisect any angle if we know how to solve a cubic equation c=4x3-3x, where c is a constant. Then explain how to solve this equation by intersecting two conic sections. Can you do it with two parabolas?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:00
Two lines parallel to a third line are parallel to each other. always sometimes or never
Answers: 1
question
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
question
Mathematics, 21.06.2019 23:10
Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?
Answers: 3
question
Mathematics, 22.06.2019 00:00
Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish
Answers: 1
You know the right answer?
Use the formula cos(3t)=4cos3(t)-3cos(t) to show that we can trisect any angle if we know how to sol...
Questions
question
Social Studies, 03.09.2020 14:01
question
French, 03.09.2020 14:01
question
Mathematics, 03.09.2020 14:01
question
English, 03.09.2020 14:01
Questions on the website: 13722367