# Recently Active Question Of The Day Questions

• Pn= (1+x)(1-x2)(1+x3)....(1-x4n)/[(1+x)(1-x2)(1+x3)....(1-x2n)]2 Find lim(xâ†’-1)Pn ...
replied2014-06-14 04:17:10
• Let f(x) be a real valued function not identically zero satisfies the equation, f(x+yn)=f(x)+(f(y))n for all real x & y and f'(0)â‰¥0 where n(>1) is an odd natural number. Find f(10) ...
replied2014-06-09 23:24:20
• Find 1/2.4 + 1.3/2.4.6 + 1.3.5/2.4.6.8 +....till n terms ...
replied2014-06-09 23:23:29
• Find all numbers for which the product of all its factors (other than itself) is equal to the number itself. ...
replied2014-04-30 07:50:35
• can anyone express 179 in the given form- ab+ba.... condition- a and b are natural numbers...plzz...don't apply any complicated maths in it...do it in a simple way... thnks in advance for abiding the given conditions.... ...
replied2014-01-21 07:49:51
• Integration of Body = ?? ...
replied2013-11-21 22:15:20
• 1/1.3 + 1/2.4 + 1/3.5 ... till infinite terms ...
replied2013-06-29 09:00:57
• f(x)=\begin{cases} 1-x & \text{ if } x<1 \\ (1-x)(2-x) & \text{ if } 1\leq x\leq 2 \\ 3-x & \text{ if } x>2 \end{cases} Determine the values of x for which the following function fails to be continuous or differentiable ...
replied2013-06-10 08:49:25
• (1), (2,3,4), (5,6,7,8,9),.... Find the sum of numbers in the nth group ...
replied2013-06-08 18:50:26
• Lim(xâ†’âˆž)[ x2+1/x+1 -ax-b]=0 find a & b ...
replied2013-06-08 06:52:12
• 1/1.2 + 1/2.3 + 1/3.4 +...till infinite ...
replied2013-06-08 06:50:52
• lim(nâ†’âˆž) [ 2/Ï€ (n+1)cos-1( 1/n )-n] ...
replied2013-05-31 08:29:09
• a,b,c are in AP & a2,b2,c2 are in HP, then prove that a=b=c or a,b,-c/2 are in GP ...
replied2013-05-31 00:43:00
• If a, b, c be in GP & logca, logbc, logab be in AP, then prove that the common difference of AP is 3/2 ...
• Lim(nâ†’âˆž) 23-1/23+1 . 33-1/33+1 . 43-1/43+1 ... n3-1/n3+1 ...
replied2013-05-29 08:13:45
• lim(nâ†’âˆž) 1/1+n2 + 2/2+n2 +...+ n/n+n2 ...
• Find the summation s=x+x2+x4+x8.......till infinity ...
replied2013-05-27 23:48:11
• Consider a matrix whose entries are integers. Adding a same integer to all entries on a same row, or on a same column, is called an operation. It is given that, for infinitely many positive integers n , one can obtain, throug ...
replied2012-06-21 07:51:31
• Find f(5), given f'(x)=1+1/x and f(1)=1 ...
replied2012-06-18 03:32:05
• Find the lim(xâ†’0) 1. [ Sinx/x ] 2. [sinx]/x 3. [lim(xâ†’0) Sinx/x ] where [.] represents greatest integer function ...
replied2012-06-17 23:33:13
• Note: This is a question for people from classes 7 to 10 A Helium balloon is accelerating up (yes, we all know this is possible. So this is not a hypothetical situation but a practical one). So, note these things: 1) The ball ...
replied2012-06-17 02:51:35
• Let x,y,z be positive real numbers, satisfying the following inequality : (x+y+z)(\frac{1}{x}+ \frac{1}{y}+ \frac{1}{z}) < 10 Prove that x,y,z form sides of a triangle. If you know this , please don't post within a day. :) ...
replied2012-02-02 11:40:07
• Find all positive integers x and y satisfying the equation 3^x-2^y=7 ...
replied2012-01-06 21:32:16
• Show that out of {[x,2x,..,(n-1)x]} there must be one which differ from an integer by at most 1/n . Where x is a given real number and n is a given positive integer. ...