Evaluate the expression.
StartFraction 9 factorial Over 3 factorial EndFraction...
Mathematics, 23.04.2020 17:48 carissaprocacci
Evaluate the expression.
StartFraction 9 factorial Over 3 factorial EndFraction
Answers: 3
Mathematics, 21.06.2019 12:30, coolcat3190
What is the rule for reflection across the y axis
Answers: 1
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
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