Aryan1078 Aryan1078
  • 01-01-2018
  • Mathematics
contestada

Prove that n^2 > 2n + 1 for all natural numbers n >= 3

Respuesta :

Hosein
Hosein Hosein
  • 01-01-2018

[tex] {n}^{2} - 2n - 1 > 0[/tex]
[tex]n = 3 > > 9 - 6 - 1 = 2 > 0 [/tex]
suppose the following is true
Answer Link

Otras preguntas

For main-group elements, are outer electron configurations similar or different within a group? Within a period? Explain.
In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue
Find the area of the shaded region
anyone ???! need help ASAP please
Fractions to percentage
After her sunlight experiment, Mary observes that the plants in her garden grow when she waters the soil. She wonders if the plants would grow with the same amo
The proteins in plasma are of three types: albumins, globulins and ____________ . The ____________ , being the most abundant, are important in determining the o
A 5.55 L cylinder contains 1.21 mol of gas A and 4.93 mol of gas B, at a temperature of 27.3 °C. Calculate the partial pressure of each gas in the cylinder. Ass
At Park Incorporated, employees are allowed one-hour lunches, but it has become common that most stroll back fifteen minutes late every day. The factor affectin
Examine the results of an experiment above discussing how temperature affects cellular respiration. Identify the temperature at which oxygen levels would be pr