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Antwort
0,125 * m0 = m0 * 0,5^(t/5730a) || /m0
0,125 = 0,5^(t/5730a)
t/5730a = log(0,125)/log(0,5)
t= 17190a
0,125 * m0 = m0 * 0,5^(t/5730a) || /m0
0,125 = 0,5^(t/5730a)
t/5730a = log(0,125)/log(0,5)
t= 17190a
= 3ab - (ab+2b+4b)
= 3ab -ab -2b-4b
= 2ab -6b