Math, asked by gs1236661, 1 month ago

The 15th term of an arithmetic sequence is -9 and the common different is -2.over 3. Find the a3

Answers

Answered by dkchakrabarty01

1

Answer:

a15=a1+(15-1)(-2)=-9

a1=-9+28=19

a3=19+(3-1)(-2)=19-4=15 Ans

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