ehookfin22
ehookfin22 ehookfin22
  • 23-04-2022
  • Mathematics
contestada

If a1 = 7 and an = an-1 + 4 then find the value of a4.

Respuesta :

semsee45
semsee45 semsee45
  • 23-04-2022

Answer:

[tex]a_4=19[/tex]

Step-by-step explanation:

Given:

  • [tex]a_1=7[/tex]
  • [tex]a_n=a_{n-1}+4[/tex]

[tex]\implies a_2=a_{1}+4=7+4=11[/tex]

[tex]\implies a_3=a_{2}+4=11+4=15[/tex]

[tex]\implies a_4=a_{3}+4=15+4=19[/tex]

Answer Link
Аноним Аноним
  • 23-04-2022

Put values get answer

  • a_n=a_(n-1)+4
  • a_4=a_3+4
  • a_4=a_2+4+4
  • a_4=a_1+4+4+4
  • a_4=7+12
  • a_4=19
Answer Link

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