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emilyliv emilyliv
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3 years ago
for the following recursive formula, find t3,t4,t5,t6: t1=−20, t2=60, tn=−4t(bottom exponent)n−2 
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wrote...
Educator
3 years ago
This should help: https://youtu.be/GCfRpHeQP0I?t=100

The n-2 means use the two terms prior...

We're given the first two, which is great!

tn=−4tn−2

t3 = -4(-20) = 80
t4 = -4(60) = -240
t5 = -4(80) = 80
t6 = -4(-240) = 960

Hope that helps
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