t2 = 480 and t7 = -15. Determine the common ratio, r.
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Originally Posted by wtfmate t2 = 480 and t7 = -15. Determine the common ratio, r. t3 = r t2 t4 = r t3 = r^2 t2 t5 = r t4 = r^3 t2 t6 = r t5 = r^4 t2 t7 = r t6 = r^5 t2. so: r^5 = t7/t2 r = fithroot(t7/t2) = -0.5 RonL
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