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Assoli18 [71]
3 years ago
5

If pn= pn-1 +4 and p17=74, then p3=

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0
p_n=p_{n-1}+4
\implies p_{17}=p_{16}+4
\implies p_{17}=p_{15}+2\cdot4
\implies p_{17}=p_{14}+3\cdot4
\implies p_{17}=\cdots=p_3+14\cdot4

\implies74=p_3+56\implies p_3=18
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