Mathematics, 29.06.2019 06:40 QuestionsAnsweredNow
Find the range. 4.7 6.3 5.4 3.2 4.9 3.1 β3.1 9.5 β9.5
Answers: 1
Mathematics, 21.06.2019 18:40
Acircle has a circumference of 28.36 units what is the diameter of the circle
Answers: 2
Mathematics, 21.06.2019 19:30
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particleβs acceleration positive? (round one decimal place and answer in interval notation) e. when is the particleβs acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Find the range. 4.7 6.3 5.4 3.2 4.9 3.1 β3.1 9.5 β9.5...
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