Mathematics, 25.05.2021 21:50, egreer9287
Which of the following equations are identities? Check all that apply. O A. tan2x = sec2x-1 B. sin2x = 1 - cos2x C. sin2x-cos2x = 1 D. cot2x+ csc2x=1 SUBMIT
Answers: 2
Mathematics, 21.06.2019 17:30, liamgreene90
Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250
Answers: 2
Mathematics, 21.06.2019 19:50, Roshaan8039
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
Mathematics, 22.06.2019 01:00, isabellecannuli
Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?
Answers: 1
Which of the following equations are identities? Check all that apply. O A. tan2x = sec2x-1 B. sin2x...
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