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jeancool jeancool
  • 29-08-2015
  • Mathematics
Answered

Find an equation for the nth term of the arithmetic sequence.


a19 = -58, a21 = -164

Verified Answer :

MichaelLiu
MichaelLiu MichaelLiu
  • 29-08-2015

\(a_{21} = a_{19} + 2d\)
\(-164 = -58 + 2d\)
\(2d = -106\)
\(d=-53\)

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