A man walks around a field once.
a runner runs around the field 6 times in the same time
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Mathematics, 22.05.2020 15:57 hansen8031
A man walks around a field once.
a runner runs around the field 6 times in the same time
the walker walks at 3m/s
calculate the speed of the runner.
Answers: 1
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What is the first step of an indirect proof of a number that is divisible by two
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The sum of two numbers is 86, and their difference is 20. find the two numbers
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Which of the following quartic functions has x = ā1 and x = ā2 as its only two real zeroes?
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Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
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