annasmidi17
annasmidi17 annasmidi17
  • 17-08-2021
  • Mathematics
contestada

Find Term 20 for the sequence a= 4 6 8 10......​

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chloet1101 chloet1101
  • 17-08-2021
term 20 in the sequence of a = 42
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Аноним Аноним
  • 18-08-2021

4,6,8,10 are in A.P

  • a=4
  • d=2

[tex]\\ \rm\Rrightarrow a_n=a+(n-1)d[/tex]

[tex]\\ \rm\Rrightarrow a_20=4+(20-1)2[/tex]

[tex]\\ \rm\Rrightarrow a_20=4+19(2)[/tex]

[tex]\\ \rm\Rrightarrow a_20=4+38[/tex]

[tex]\\ \rm\Rrightarrow a_20=42[/tex]

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