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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 20:10
Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12
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Mathematics, 22.06.2019 00:30
Graph a point. start at your origin, move left 10 units, and then move up three units which ordered pair is the point you graphed
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Mathematics, 22.06.2019 01:30
Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?
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