9 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.What you have done is 2^4 - 2^0
2^7- 2^3 is the answer is it? :)
for the 4th step?
tht 2^4 was formed because i took 2^3 common from the bracket so tht inside bracket summation n^3 can be formed
Bhai
Just observe
Sum of natural numbers hai bas
thnku sir
got it, tht (2n)^3 shouldn't be thr, wrong general term for the right side,
there n^3 will come and summation for left side n=1 to 15 and right part, n=1 to 30
my general term went wrong and then limits went wrong....
after correcting i m getting it
so, thanku sir for ur help🙏
+solved @iTeachChem
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