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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:00
Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school
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Mathematics, 21.06.2019 23:30
Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest
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What is the value of m in the expression (6m+8) =4(17-M)...
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