In msperlin/adfeR: Data, exercises and Functions for Book "Analise de Dados Financeiros e Economicos com o R"

i <- 1:100

x <- ( (-1)^(i+1) )/(2*i - 1)

# solution
my_sol <- sum(x)

my_answers <- make_random_answers(my_sol)

#check_answers(my_answers)

Question

Crie um vetor x de acordo com a fórmula a seguir, onde $i=1...100$. Qual é o valor da soma dos elementos de x?

$$ x_i=\frac{-1^{i+1}}{2i-1} $$

exams::answerlist(my_answers, markup = "markdown")

Solution

Meta-information

extype: num exsolution: r my_sol exname: "numeric " exshuffle: TRUE

msperlin/adfeR documentation built on March 26, 2021, 3:05 a.m.