in the arithmetic sequence 5 11 17
find the 21st tearm
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Answered by
1
Answer:
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Answered by
1
Answer:
125
Step-by-step explanation:
a=5
d=11-5=>6
T21=a+(n-1)d
=5+(21-1)6
=5+20×6
=5+120
=125
hope it help ☺☺
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