Mathematics, 25.09.2019 13:30 whitty
Find the coordinates of the circumcenter triangle abc with vertices a (0,0) b(3,0) c(3,2)
a) 0,0
b) 1.5,1
c) 2.5,1.5
d) 6,2
Answers: 1
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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
Find the coordinates of the circumcenter triangle abc with vertices a (0,0) b(3,0) c(3,2)
a) 0...
a) 0...
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