Question

Determine o centésimo primeiro termo da PA (-7,-5,-3,...)?

Answer 1

$\mathsf{r=-5-(-7)=-5+7=2}$

$\mathsf{a_{100}=a_{3}+97r}\\\mathsf{a_{100}=-3+97.2}\\\mathsf{a_{100}=-3+194}$

$\huge\boxed{\boxed{\boxed{\boxed{\mathsf{a_{100}=191}}}}}$