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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) = .
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Mathematics, 21.06.2019 22:30
If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b
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Mathematics, 21.06.2019 22:30
Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value
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What property is 4x+12 = 20...
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