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+…..+.... |
2024-06-28 | The rational number, which equals the number 2.357¯ with recurring decimal is.... |
2024-06-28 | If x, y, z are positive then the minimum value of xlogy-logz+ylogz-logx+zlogx-logy is.... |
2024-06-28 | The first two terms of a geometric progression add up to 12. The sum of third and fourth terms i.... |
2024-06-28 | If 5th term of a H.P. is 145 and 11th term is 169, then its 16th term will be.... |
2024-06-28 | Sum of the series S=12-22+32-42+….-20022+20032 is.... |
2024-06-28 | If S is the sum of infinite terms of a G.P. whose first term is ' a ', then the sum of the first.... |
2024-06-28 | If a an b are pth and qth terms of an AP, then the sum of (p+q) terms is.... |
2024-06-28 | The first term of an A.P. of consecutive integer is p2+1. The sum of (2p+1) terms of this series.... |
2024-06-28 | If the sum of 1+1+22+1+2+33+…. to n terms is S, then S is equal to.... |
2024-06-28 | The sum of the series 1log24+1log44+1log84+.... |
2024-06-28 | 13+23+33+43+……..12312+22+32+42+……….122=.... |
2024-06-28 | The sum of the series 13×7+17×11+111×15+… is .... |
2024-06-28 | If a,b,c are in G.P., then logax,logbx,logcx are in .... |
2024-06-28 | If ab,bc,ca are in H.P., then .... |
2024-06-28 | If the A.M., G.M. and H.M. between two positive numbers a and b are equal, then.... |