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Posted by Awe on Tuesday, January 21, 2014 at 2:41pm.

The 2nd term in a geometric sequence is -4 and the 5th term is 32

a + ar + a r^2 + a r^3 + a r^4 ar = -4 a r^4 = 32 a = -4/r (-4/r) r^4 = 32 r^3 = -8 so r = -2 and a = 2

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