Question

encontre o 8 termo de uma pa sabendo que o primeiro termo a1=2 e r =2

me ajudaaaaaaaaaa

Answer 1

$> \: resolucao \\ \\ \geqslant \: progressao \: \: aritmetica \\ \\ a1 = 2 \\ r = 2 \\ n = 8 \\ \\ = = = = = = = = = = = = = = = = \\ \\ \\ an = a1 + (n - 1)r \\ an = 2 + (8 - 1)2 \\ an = 2 + 7 \times 2 \\ an = 2 + 14 \\ an = 16 \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant \geqslant$

Answer 2

Resposta:

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

$\mathsf{a_n=a_1+(n-1)\cdot r }$

$\mathsf{ a_8=2+(8-1)\cdot2}$

$\mathsf{a_8=2+7\cdot2 }$

$\mathsf{a_8=2+14 }$

$\boxed{\boxed{\mathsf{ a_8=16}}}$