| 2024-06-28 | If the sum of first p terms, first q terms and first rterms of an A.P. be x, y and z respectivel.... |
| 2024-06-28 | 12+22+…+n2=1015, then value of n is .... |
| 2024-06-28 | The sum of the first n-terms of the series 12+2.22+32+ 2.42+52+2.62+… is n(n+1)22, when n.... |
| 2024-06-28 | If 112+122+132+… upto ∞=π26, then 112+132+152 +……=.... |
| 2024-06-28 | The sum∑r=2∞1r2-1 is equal to .... |
| 2024-06-28 | If A, G & H are respectively the A.M., G.M. & H.M. of threepositive numbers a, b, & .... |
| 2024-06-28 | If ax=by=cz=dt and a, b, c, d are in G.P., then x, y, z, t are in.... |
| 2024-06-28 | If a, b, c are in A.P. p, q, r are in H.P. and ap, bq, cr are in G.P., then pr+rp is equal to.... |
| 2024-06-28 | If x=∑n=0∞an,y=∑n=0∞bn,z=∑n=0∞cn where a, b, c are in AP and |a|&l.... |
| 2024-06-28 | If the sum of the roots of the quadratic equation, ax2+bx+c=0 is equal to sum of the squares of .... |
| 2024-06-28 | If 3+14(3+d)+142(3+2d)+….+ upto ∞=8, then the value of d is.... |
| 2024-06-28 | There are n A.M’s between 3 and 54, such that the 8th mean:n-2th mean :: 3: 5. T.... |
| 2024-06-28 | If x>0, and log2x+log2(x)+log2(x4)+log2(x8) +log2(x16)+…=4, then x equals.... |
| 2024-06-28 | If p is positive, then the sum to infinity of the series, 11+p-1-p(1+p)2+(1-p)2(1+p)3-…&h.... |
| 2024-06-28 | In a G.P. of positive terms, any term is equal to the sum of the next two terms. The common rati.... |
| 2024-06-28 | α,β be the roots of the equation x2-3x+a=0 and γ,δ the roots of x2-1.... |
| 2024-06-28 | The sum to 10 terms of the series is 2+6+18+54+… is.... |
| 2024-06-28 | Consider an A.P. with first term ' a ' and the common difference ' d ' Let Sk denote the sum of .... |
| 2024-06-28 | If x∈R, the numbers 51+x+51-x,a/2,25x+25-x form an A.P. then ' a ' must lie in the interval.... |
| 2024-06-28 | If a, b, c are in A.P. and x, y, z are in G.P., then find the value of xb-c·yc-a·z.... |
| 2024-06-28 | If a1,a2,a3,… are in A.P. such that a1+a5+a10+a15+a20 +a24=225, then a1+a2+a3+…..+.... |
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