find the nth term

find the nth term of the series 2.2+4.22+7.23+11.23+16.2^5................................

9 Answers

1
Akand ·

dude.............I dont think thts rite..........

1
Akand ·

because for n=2

by ur method d ans we wud get was 16...

but given for n=2....
2.2+4.22
=4+16
=20

1
JOHNCENA IS BACK ·

akand dunno wat u think of nth term but for me..........if i m thinking it right ans. shud be

[n2/2 +n/2 +1]2n

1
Akand ·

jai ho..............look............i know wher u r gettin confused...

look carefully they are not separate terms ITS A SUMMATION...
so N term here is different.............its not d usual one yaar

1
Akand ·

HEYYYYYYYYYYY...and WHY did u delete ur posts which were before mine?????

waahhhhhhhhhhhh

they will think im just shouting like that......

My fellow targetiitians....JAI HO had posted sumthing before me.....and i said that wasnt correct so he deleted it...now dont scold me.....

1
JOHNCENA IS BACK ·

bhaiya.............

but he has asked for nth term """"""of series"""""""""na............not the sum........[1]...........moreover i gave nth term.......next summing it is quite easy......isn't it?

1
JOHNCENA IS BACK ·

oh..............sorry yes TIITIANS..............i posted a few posts before akand sorry for deleting them

1
Akand ·

no yaar........u r not understanding.........
here.....
1st term is ......2.2
2nd term is....2.2+4.22....not just 4.22
3rd time is.....2.2+4.22+7.23....not just 7.23
so on

thts y msp cudnt get it.........

1
JOHNCENA IS BACK ·

\sum{}[n2/2 +n/2 +1]2n

ab to sahi hai na............[1]

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