Mathematics, 23.02.2020 06:20 joThompson
A student said that 3:4 is equivalent to 9:16 and 18:64. What did the students do wrong?
Answers: 3
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, 21.06.2019 22:00, dorothybean
Describe how you can act financially responsible.
Answers: 1
A student said that 3:4 is equivalent to 9:16 and 18:64. What did the students do wrong?...
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