How do you find the next two terms of the geometric sequence #1.4, -3.5, 8.75,...#?

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Answer 1 · 2016-10-13T10:19:27

Next two terms are #-21.875# and #54.6875#

It is a Geometric sequence, whose first three terms are

#{1.4, -3.5, 8.75}#

Hence #r=-3.5/1.4=-5/2=-2.5#

Further #-3.5xx-2.5=8.75#, which is third term

Hence, next two terms are

#8.75xx-2.5=-21.875#

and #-21.875xx-2.5=54.6875#