Question

Determine a razao de uma PA sabendo que an=100,a1=10 e n =10

me ajudaaaaa

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

$\mathsf{ r= \dfrac{a_n-a_1}{n-1}}$

$\mathsf{ r=\dfrac{100-10}{10-1}}$

$\boxed{\boxed{\mathsf{ r=10}}}$

Answer 2

$> \: resolucao \\ \\ \geqslant \: progressao \: \: aritmetica \\ \\ an = 100 \\ a1 = 10 \\ n = 10 \\ \\ = = = = = = = = = = = = = = = = \\ \\ \\ an = a1 + (n - 1)r \\ 100 = 10 + (10 - 1)r \\ 100 = 10 + 9r \\ 100 - 10 = 9r \\ 90 = 9r \\ r = \frac{90}{9} \\ r = 10 \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant \geqslant$