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What is the no. of ways to seat 4 boys and 3 girls around a circular table ? ...
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how many zeroes are there in 500!....???gud Q try it?? ...
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Great question --- though not difficult --- If the polynomial xn + p1 xn-1 + p2 xn-2 + p3 xn-3 + ...... + pn-1 x + pn = 0 , has n real roots a , b ,c , d ... k , and p1 , p2 , p3 are all real , then find the value of , ( 1 - ...
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*Image* edit: (III) is balls differnt, boxes identical Q2. There are 6 elements in a set A and 3 elements in a set B. Total no. of onto functions from set A to set B if a particular element of A is always associated with a pa ...
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Doubts... 1) If the equation x4 -(3m+2)x2 +m2=0 (m>0), has 4 real solutions which are in A.P., find the value of "m". 2) Let P(x) be a Polynomial of degree 4 such tht - P(1)=P(3)=P(5)=P'(7) =0. If the real number x (≠1,3 ...
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there are 13 couples... the men can shake hands with everyone except their wives and the women can shake hands with the men only......find the total number of handshakes..... ...
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If the eqn [ log12 (log8 (log4x)) ] / [log5(log4(logy(log2x))))] = 0 has a solution for 'x' when c<y<b , y≠a , where 'b' is as large as possible & 'c' is as smal as possible , then the value of (a+b+c) = (A)18 (B)19 ( ...
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Ques) In a certain test, there are n questions. In this test, 2 n- i students gave wrong answers to atleast i questions, where i = 1,2,3,4,......, n. If the total no. of wrong answers given is 2047, then find the value of n. ...
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Just came across a beautiful question..... If a1, a2, a3, a4 are in HP then 1/a1a4 \sum_{r=1}^{3}{} ar ar+1 is a root of : A) x2 + 2x + 15 = 0 B) x2 + 2x - 15 = 0 C) x2 - 2x + 15 = 0 D) x2 - 2x - 15 = 0 ...
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Let P(x)= x6+ ax5+ bx4+ cx3+ dx2+ ex+ f be a polynomial such tht - P(1)=1, P(2)=2, P(3)=3, P(4)=4, P(5)=5 & P(6)=6. We need to find the value of P(7). [A Hint wud do perhaps.] [22] ...
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Let X= {1,2,...,100} & Y be a subset of X such thatv the sum of no two elements in Y is divisible by 7.If the max possible no of elements in Y is 40 + λ then λ is ---------?? ...
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If the eqn 2x2 +4xy + 7y2 - 12x - 2y + t = 0 where 't' is a parameter has exactly one real solution of the form (x,y) . Then the sum of (x+y) is equal to (A) 3 (B) 5 (C) - 5 (D) -3 ...
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How many distinct necklaces can be formed using n identical diamonds and k identical pearls? ...
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(1) Find all Integer a for which The equation x^{3}-13x+a=0 has three Integer Roots. ...
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For all complex numbers z1 and z2 satisfying mod(z1)=12 and mod(z2-3-4i)=5 , find the minimum value of mod(z1-z2) . ...
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S = { [x],sin-1x , l x l , {x} } A,B,C are subsets of S A ---> consists of odd functions B ----> consists of discontinuous functions C ----> consists of non decreasing/ increasing functions l (x) ε neither A nor B n ...
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MATCHING (A)Let f : [-1,∞) ---> (0,∞) defined by f(x) = ex2+l x l , then f(x) is (B)Let f: (1,∞)---> [3,∞) defined by f(x) = 10 - 2x + x2 then f(x) is (C) Let f: R--->I defined by f(x) = tan5∩ [ x2 +2x+3 ] ...
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if z1 z2 z3 r complex nos such that \left|z_{1} \right|=\left|z_{2} \right|=\left|z_{3} \right|=1 then find the max value of \left|z_{1}-z_{2} \right|^{2}+\left|z_{2}-z_{3} \right|^{2}+\left|z_{3}-z_{1} \right|^{2} ...
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If a and b are +ve integers.......find the probabilty that \frac{1}{2}(a^{2}+b^{2}) is a +ve integer ...
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tanA,tanB,tanc are the roots of the eqn. x3-k2x2-px+2k+1=0,then triangle abc will be a triangle of what nature?explain the ans? ...
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how many necklace can be using 8 stones 2- red 3-blue 3-black ...
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x=\sum_{n=3}^{100}{\frac{1}{n^2 -4 }} \\ \color{red}then \ find \ [x] my answer is coming out to be -3 ...
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The quadratic polynomial has the following properties : p(x) ≥ 0 for all real no.s , p(!) = 0 & p(2) = 2.Find the value of p(0) + p(3) Ans : 10 (I wan't solution) ...
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(1) The maximum value of (\sqrt{-3+4x-x^{2}}+4)^{2}+(x-5)^{2} (where 1\leq x\leq 3 ) (Not by using Trigonometry). ans = 36 ...
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Let p be the product of the non real roots of the eqn x4 - 4x3 + 6x2 - 4x = 2008 where [*] denotes the greatest integer function , then find [P] ...
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Multiple Ans QS A parabola of the form y = ax2 + bx + c with a>0 intersects the graph of f(x) = 1/(x2 - 4) No of possible distinct intersections of these graph is (A) 0 (B) 2 (C) 3 (D)4 ...
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The values of x for which the equation , 2 sin-1(sin x/2) = x is valid? (A) for all x (B) -1≤x≤1 (C) -∩≤x≤∩ (D) -∩/4≤x≤∩/4 ...
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some of my friends are confused with percom so i want all here help them out with theory and problems alike......some are starting now...can nishant bhaiya help??? ...
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Nine hundred distinct N-digits numbers are to be formed by using 6,8,and 9 only.The smallest value of N for which this is possible is a) 6 b)7 c)8 d)9 ...
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If x = z√(1 - y2) + y√(1 - z2), find the minimum value of (x + y + z)(x - y + z)(x + y - z)(-x + y + z). ...