Geometric seq

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

Correct answer:

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

Step-by-step explanation:

Our quadratic equation calculator calculates it.

c2=a2 a22=72 722=373248

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