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Suppose justin's graph has an empty circle at 12 write the inequality represented by this graph .
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Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b
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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) = .
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In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?
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Suppose justin's graph has an empty circle at 12 write the inequality represented by this graph ....
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