nikhilpun36 nikhilpun36
  • 02-06-2021
  • Business
contestada

the sum of a and 3a is​

Respuesta :

mahraalirashid mahraalirashid
  • 02-06-2021

Answer:

Given,

3a,a,_a.......a terms

Sn=n/2[2(a)+(n-1)d]

Sa=a/2(6a-2a+1)

Sa=a/2(2(2a+1)

Sa=a(2a+1)

Sa=2a^2+a

Explanation:

Answer Link

Otras preguntas

What was true about the Communist Party of the United States of America?
Which waves are mechanical waves A. Sound waves B. Microwaves C. Light waves D. Radio waves
What is the product of (2x^2+5x-3) and (3x+7)
The "tyger" in William Blake's poem symbolizes _____. A. death B. revolution C. oppression D. anger
Please help me with this question.
The help America vote act of 2002 required states to
Which defense mechanism involves using an excuse that is likely to be more acceptable instead of the real reason?
i need help ! asap !
In 1850 when was the slave trade banned?
8 inches of snow was predicted. 12 inches of snow fell. calculate the percent error