menu search
brightness_auto
more_vert

Find the first two terms of the sequence for which Sn is given below \(S_n=n^2 (n+1)\)

thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike

1 Answer

more_vert
 
verified
Best answer

Answer is  2 , 10 

Solution ::
To find the first term 

substitute n=1 in formula 

\(S_1=1^2(1+1)=1(2)=2\) 

To find the second term, substitute n = 2 in formula or equation

\(S_2=2^2(2+1)=4(3)=12\) 

Now S2 is the sum of the first two terms.

the first term + the second term = 12

2 + the second term = 12

the second term = 12 - 2

the second term = 10

So, the first term = 2 and the second term = 10

 

thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike

Related questions

thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
1 answer
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
1 answer
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
1 answer
thumb_up_off_alt 1 like thumb_down_off_alt 0 dislike
1 answer
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
1 answer

Welcome to Brainiak.in , where you can ask questions and receive answers from other members of the community ,

There is many categories for every students  CBSE , Maharashtra board , JEE , NEET  and we will add more categories

and make brainiak one of the most loved community of students

Advertisement

Get Your advertisement on Brainiak.in Buy Adspace

3.0k questions

2.5k answers

24 comments

341 users

...