Question 4 of 10
Solve the system of equations by graphing on your own paper. Which of the
f...
Mathematics, 30.04.2021 04:30 hiji0206
Question 4 of 10
Solve the system of equations by graphing on your own paper. Which of the
following is true about the system?
(y = 2x+3
ly = 2x - 2
Answers: 1
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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
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Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.
Answers: 1
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