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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) = .
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Mathematics, 21.06.2019 20:10, lele142018
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, 21.06.2019 20:10, kendall984
Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm
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Mathematics, 21.06.2019 20:30, AllanCasey12
Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?
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F(n) = 3(n+ 1). Find f(-2)...
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