kebojr1234 kebojr1234
  • 20-07-2020
  • Mathematics
contestada

Write an explicit formula for An, the nth term of the sequence 1, -2, 4, ....

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 20-07-2020

Answer:

an = (-2)^(n - 1)

Step-by-step explanation:

a1 = 1

a2 = 1 * (-2) = -2

a3 = a2 * (-2) = (-2) * (-2) = (-2)^2

a4 = a3 * (-2) = (-2)^3

etc.

an = (-2)^(n - 1)

Answer Link

Otras preguntas

what are the European Rivalries in North America
8. An object accelerates at a rate of -3.2 m/s2 to a velocity of 5 m/s over a time of 10 s. What was its initial velocity
Females who died before 1948
Prove that (1+sin2x)/(1-sin2x)=cot^2(x-pi/4)
how do U solve this?​
Can I please get help with this question
Which is the closest antonym for the word chronically. A. Temporarily.
Input variable:Output variable:​
Liz polishes rings for a jeweler. She can polish 9 rings per hour. How many hours will it take her to polish 315 rings?
42/19 as a decimal rounded to the nearest 10th