| 2024-06-28 | The value of ∑r=1n1a+rx+a+(r-1)x is.... |
| 2024-06-28 | Let A1, A2 ..., Am be the arithmetic means between&.... |
| 2024-06-28 | If x, y, and z are distinct prime numbers, then.... |
| 2024-06-28 | The line x + y = 1 meets x-axis at A and y-axis at B, P is the mid-point of AB;P is the foot of .... |
| 2024-06-28 | In a geometric series, the first term is a and common ratio is r.If Sn denotes the sum of the n .... |
| 2024-06-28 | “The sum of 20 terms of the series whose rth term is given by T(n)=(-1)nn2.... |
| 2024-06-28 | If a1,a2,a3… are in A.P. and bk=ak+ak+1+…+ak+n-1 (k=1,2,3,…), then b1+b2+&h.... |
| 2024-06-28 | Let x and y be two 2-digit numbers such that y is obtained by reversing the digits of x. Suppose.... |
| 2024-06-28 | If tr=rr4+4 and Sn=∑r=1ntr then the value of 37S5-726 is equa.... |
| 2024-06-28 | If S denote the sum to infinity and Sn the sum of n terms of the series 1+13+19+.... |
| 2024-06-28 | The number of three digit numbers abc¯ such that thearithmetic mean of b and c and the squa.... |
| 2024-06-28 | If n is the smallest natural number such that n + 2n + 3n + ...+ 99n is a perfect square, then t.... |
| 2024-06-28 | Let an, n ≥ 1, be an arithmetic progression with first term 2 and common difference 4, Let Mn.... |
| 2024-06-28 | The sum of all positive integers n for which13+23+….+(2n)312+22+…..+n2 is also an .... |
| 2024-06-28 | If a1,a2,a3,…a2n+1, are in A.P., then a2n+1-a1a2n+1+a1+a2n-a2a2n+a2+….+an+2-anan+2.... |
| 2024-06-28 | Let xn,yn,zn,wn denotes nth terms of four different arithmetic progressions with positive terms..... |
| 2024-06-28 | Let r1,r2,r3,r4 be the roots of the equation, x4-9x3+ax2+bx+16=0 where a,b are constants. Then t.... |
| 2024-06-28 | If a,b,c,d∈R+and a,b,c,d are in H.P., then .... |
| 2024-06-28 | If a1a2a3…an are in H. P. then a1a2+a2a3+a3a4+…+ an-1an is equal to.... |
| 2024-06-28 | If the series limit of wavelength of the Lyman series for the hydrogen atoms is 912ā«, then the s.... |
| 2024-06-28 | Let tr=2r/2+2-r/2. Then ∑r=110tr2 is equal to.... |
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