princess179
princess179
09-05-2017
Mathematics
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if pn= pn-1 +4 and p17=74, then p3=
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LammettHash
LammettHash
09-05-2017
[tex]p_n=p_{n-1}+4[/tex]
[tex]\implies p_{17}=p_{16}+4[/tex]
[tex]\implies p_{17}=p_{15}+2\cdot4[/tex]
[tex]\implies p_{17}=p_{14}+3\cdot4[/tex]
[tex]\implies p_{17}=\cdots=p_3+14\cdot4[/tex]
[tex]\implies74=p_3+56\implies p_3=18[/tex]
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