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Question #7b3cb

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1 Answer

Cesareo R. · Stefan V.

May 25, 2016

#a_1=108#

Explanation:

Solving

#{ (a_2=a_4+40), (a_2+a_4=104), (a_4=lambda^2a_2) :}#

for #a_2,a_4,lambda# we have

#a_2 = 72, a_4 = 32, lambda = 2/3# but #a_1=a_2/lambda# then
#a_1=108#

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