Geometric seq

Find the third member of geometric progression if a1 + a2 = 36 and a1 + a3 = 90. Calculate its quotient.

Result

c1 =  81
c2 =  373248
q1 =  3
q2 =  -0.5

Solution:

Solution in text c1 =
Solution in text c1 = : Nr. 1

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Solution in text c2 =
Solution in text q1 =
Solution in text q2 =

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