شرح B1

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Unformatted text preview: B1 () : n i =1 100 i =1 i = n ( n + 1) : 1 2 i = 100(100 + 1) = 5050 : 1 2 ci i = c : 2 i =1 i =1 n n 1 5 5 4 i i = 4 = 4* i =1 i =1 n n n 5(5 + 1) = 4*15 = 60 : 2 n n ai ai bi i i + bi = + = a + b : 3 i =1 i =1 i =1 i =1 i =1 4 4 6 i i i + 6i = i + i = 4 + 6 i =1 i =1 n 0 i =1 i =1 i =1 5 5 5 5 5 : 3 N 0 ar i - r n +1 1 a = r 1 - r 1 : 4 i 3 0 - 43+1 1 5* 4i = 5 : 4 1 - 4 a r < 1 : 5 1- r 0 0 ar i = i 0 4*3i = 4 : 5 1- 3 populat ion : : 3 Popu.size growth rate logist ic model -1 -2 -3 popu.size -1 : popu.size Pn = po * r n : = Pn = po = r po Pn = n : find the popu.size if ...
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