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OpenStudy (anonymous):
MEDAL FOR BEST ANSWER! What is the 50th term of the sequence 20,9,-2,-13,...?
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rvc (rvc):
-519 is ur ans
rvc (rvc):
is it so?robert
OpenStudy (anonymous):
it is an A.P. a=20 c.d. d=9-20=-11 an=a+(n-1)d n=50 calculate t50
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