Mathematics questions
18011 published questions with worked solutions.
- The sum of the series _93+ _ 27 3- _ 81 3+ _ 243 3- is
- The sum of the infinite series ( 13 )^2+ 13 ( 13 )^4+ 15 ( 13 )^6+ is
- The sum of the series _42- _82+ _ 16 2- _ 32 2+ is
- _e3- _e9 2^2 + _e27 3^2 - _e81 4^2 + is
- x-y x+ 12 ( x-y x )^2+ 13 ( x-y x )^3+ is equal to
- The sum of series 1 1.2.3 + 1 3.4.5 + 1 5.6.7 + is equal to
- The coefficients of x^n in the expansion of _a(1+x) is
- _ n=1 ^ 2n^2+n+1 n! is equal to
- The sum of the infinite series 1+ 1 2! + 1.3 4! + 1.3.5 6! + is
- The coefficient of x^n in the expansion of (a-bx) e^x is
- The sum to the series 1 1.2 + 1.3 1.2.3.4 + 1.3.5 1.2.3.4.5.6 + is
- The coefficient of x^n in the series 1+ a+bx 1! + (a+bx)^2 2! + (a+bx)^3 3! + is
- The value of 1+ 1+2 2! + 1+2+3 3! + 1+2+3+4 4! + is
- The sum of series 1+ 1 4.2! + 1 16.4! + 1 64.6! + is
- 1+ 2^3 2! + 3^3 3! + 4^3 4! + equals
- If a,b,c,d are any four consecutive coefficients of any expanded binomial, then a+b a, b+c b, c+d c are in
- The product of n positive numbers is unity. Their sum is
- If a,b,c are in AP then 10^ ax+10 ,10^ bx+10 ,10^ cx+10 (x 0) are in
- Statement 1: If sum of n terms of a series 2n^2+3n+1, then series is an AP. Statement 2: Sum of n terms of an AP is always of the...
- If a,b,c are in AP, then 3^a,3^b,3^c shall be in