SOLUTION: Find the sixth term in the sequence in which a^4=20 and r=-3

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Question 935574: Find the sixth term in the sequence in which a^4=20 and r=-3

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
Is "a" the first term, at index 1 ?



more easily stated as


The sixth term would be a*r^(5)


Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Find the sixth term in the sequence in which a^4=20 and r=-3
With r being - 3, this seems to be a GP (geometric progression)
If you meant: , then 6th term, or
You can do the check!!
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