Mathematics, 12.05.2021 19:20 slowmotion
A A rug is 6 feet long and w feet wide. Which expression
does NOT represent the perimeter of the rug in feet?
Circle the correct answer.
A) 2(67/8+w)
B) 2w-13 6/8
C) 2(67/8+w
D) 6 7/8+ w+ 6 7/8 + w
Answers: 2
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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
Mathematics, 21.06.2019 21:30
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A A rug is 6 feet long and w feet wide. Which expression
does NOT represent the perimeter of the ru...
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