Respuesta :

  • First term=a=1
  • Common difference=d=-3

Note down the Formula first

[tex]\boxed{\star\sf a_n=a+(n-1)d}[/tex]

  • Here n is 12

[tex]\\ \sf\ast\Rrightarrow a_{12}=1+(12-1)(-3)[/tex]

[tex]\\ \sf\ast\Rrightarrow a_{12}=1+11(-3)[/tex]

[tex]\\ \sf\ast\Rrightarrow a_{12}=1-33[/tex]

[tex]\\ \sf\ast\Rrightarrow a_{12}=-32[/tex]

Option D is correct

prashna04karki

Answer:

-32 is your answer.

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