zoyaxfj
zoyaxfj zoyaxfj
  • 04-03-2019
  • Mathematics
contestada

If the sum of the first n terms of sequence is (2n^2)+3, find the first two terms of the sequence

Respuesta :

jimrgrant1 jimrgrant1
  • 04-03-2019

Answer:

5, 6

Step-by-step explanation:

Given the sum to n terms is

[tex]S_{n}[/tex] = 2n² + 3, then

[tex]S_{1}[/tex] = 2(1)² + 3 = 2 + 3 = 5 ⇒ [tex]a_{1}[/tex] = 5

[tex]S_{2}[/tex] = 2(2)² + 3 = 8 + 3 = 11

⇒ [tex]a_{2}[/tex] = 11 - 5 = 6

Answer Link

Otras preguntas

Los niños dicen que quieren jugar con _____. Question 3 options: l as cajas los juguetes los vidrios las latas
Simplify and write -t(16t+7) in standard form. After rewritten identify a b and c terms.
Which of the following sets of numbers is a Pythagorean triple? A. 14, 40, 50 B. 7, 24, 31 C. 7, 20, 27 D. 14, 48, 50
The ____ were the most powerful northern european rulers during much of the 15th century.
What is the molar mass of (NH4)2CO3
solve this quadratic equation by completing the square x^2+8x=10
If you earn a commission of $150.00 per course that you sell on the internet, and you have sold 112 courses, what is your commission?
What is an important skill to have if you want to avoid conflicts?
jack bought 3 slices of cheese pizza and 4 slices of nushroom pizza for a total cost of $12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom p
What factor might lead to the opening of several new pizzerias in a town? the price of a slice of pizza has gone up. the supply of pizza is inelastic. the cost