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Mathematics, 21.06.2019 14:30
What is the value of x? enter your answer in the box. (cm)
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You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?
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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
How do you solve this? 4x+1-x=2x-13+5?...
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