7. Solve for x in the rectangle below.
AREA = 36 m
one side is (W + 5)
the other side i...
Mathematics, 19.02.2021 01:50 xXFLUFFYXx
7. Solve for x in the rectangle below.
AREA = 36 m
one side is (W + 5)
the other side is (W)
Answers: 1
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Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33
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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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