IIT JEE , AIEEE Forum - Mathematics , Algebra

Radon222

Find the number of terms in the expansion of $\left(\frac{x^3+1+x^6}{x^3} \right)^{\sum{n}}$

netkid07

what's this rubbish "this is for vineetnegi" ????..............

in some posts it's written "this is for konichiwa2x"..............

in some it's written "this is for hsbhatt sir".............

pleeeez.........grow up yaar..........if u want only a specific person to solve this question.......then why are u posting this thread in community.......post this on his/her nudgebuk or yahoo mail or any hell.......

Radon222

Mister Rohan,

Your comment isn't required.

If you can't solve the question , you don't have the right to criticize.

I just posted this question to see whether vineetnegi who is asking questions to konichiwa2x and hsbhatt sir in public can himself solve some or not.

Whats the big deal?

netkid07

big deal ??....hahahah.........i never said it's a big deal........just wanted to highlight that......

and for ur info.........i knw how to solve this q....!!.......

.....

Radon222

Ok ,netkid07 then its not for vineetnegi anymore , its for you, lets see if you can

vineetnegi

what have i done wrong to you!

x^3=y

no of terms are the no. of terms

in the expansion of

(y^2+y+1)^p

clearly

the power of y is ( by multinomial theorem) (2*q+r)

this can take any no. even or odd

the biggest power is 2p and smallest is 0

therefore no.of terms 2P+1

p=(n+1)(n)/2

ans

(n+1)n+1

and ya dudes sorry for posting question in that manner

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