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Let a=33n where n ε N.If exponent n is chosen at random,find the probabality that units digit of a is 9 ...
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A fair dice is rolled 2n+1 times.Find probablity that faces with even number appear odd no. of times. ...
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6 dices are tossed simulataneously.how many times does exactly 3 dices show 5 or 6?? ...
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two integers are choosen at random and multiplied. the probability that the product is an even integer is ?????????????? ...
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2 men plan to meet at the town's clock tower on 29 Aug 2009 between 4pm to 6 pm. But they are both very impatient and cant wait more than 20 mins for the other person to come. so they can come anytime between 4 to 6 and will ...
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wat is the total number of outcomes in a single throw of 3 dices ...
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If A is a square matrix of order 3 then |(A-AT)2009| is equal to... [7] ...
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The number of ways in which the six faces of a cube be painted with six different colours is...... a]6 b]6! c]6C2 d] none of these ...
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Q6 4 boys and 3 girls ........... find the no. of ways to seat them on a circular table such that no two girls sit together. a) 0 b) 3!*4! c) 3!*3! d) 3! Correct Answer: (b) ...
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*Image* here are the answers:(Plz provide the solutions) 1)-1,1,3 2)2k+1 3)-1/3 4)-1/9 ...
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How many ordered integral pairs (m,n) are there such that 3^m+2^n is the square of an integer? ...
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*Image* ...
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no of rational no.s lying in the interval : 2002 to 2003 all whose digits aftr the decimal point are non-zero and are in decreasing order.. ?? ...
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solve graphically 25x2+18x-5=0 ...
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What is a asymptote? ...
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My max sir gave some questions and i donno whether the answers r rite & method 4 some is unknown 2 me.... 1. A die is thrown thrice, find the probability of getting an odd number at least once Answer got: 5/8 2. The probabili ...
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f(m,n) = 3m + n + (m+n)2 Find Σn=0 to ∞(Σm=0 to ∞ 2-f(m,n)) ...
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what is the probability of getting two consecutive heads in five tosses of an unbiased coin ...
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A bag contains 8 red and 5 white balls.Three balls are drawn at random.Find the Probability that All the three balls are white in solving this question i have a doubt can we take 5 white balls as identical or not.can u explai ...
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this is a ques from the test forum a man has Rs390000 on retirement He gets Rs5000 per month as pension His expenditure of first month is Rs5000 and increases by Rs500 every month When he will be bankrupt Please solve it ...
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Let f (x + y) = f (x) f (y) for all x and y. Suppose that f (3) = 3 and f '(0) = 11. Then f ' (3) is given by : opts are : 22,33,44, none of these.... Ans: I'm getting 33 but the ans reads none of thes ...
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n balls are picked, one by one from four urns each containing n identical balls of green, red, white and blue colours. The number of ways, when no two consecutive pickings are from same urn and balls of all the colours are pi ...
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MULTIPLE CORRECT ANSWER TYPE Which of the following is true (mn!)^2 is divisible by a) (m!)^(m+1)*(n!)^(n+1) b) (m!)^n * (n!)^m c) (n!)^n * (m!)^m substituting values n gettin ans is pretty easi here i wud like 2 kno da meth ...
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Consider a system of linear eqn in 3 variables: a1x+b1y+c1z=d1 a2x+b2y+c2z=d2 a3x+b3y+c2z=d3 The system can be expressed by matrix eqn a1 b1 c1 x d1 a2 b2 c2 y = d2 a3 b3 c3 z d3 If A is non singular matrix i.e detA≠0,then ...
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If n/7,nεN is anon terminating and recurring decimal rational number.After decimal stage , digits start repeating groups continuously.If smallest such group has r digits,the Maximum calue of r is _____ ...
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Don't want soln or any hint just the answer.. If the roots of the equation ax2+cx+c=0 be in ratio p:q then.... p/q + q/p + c/a =? ...
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Let a,b,c be natural numbers and the quadratic equation ax2-bx+c=0 have two distinct roots lying in the interval (0,1)... Now.. a) the least value of a b) the least value of b c) the least value of c [7] ...
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Sorry double post correct link: http://targetiit.com/iit_jee_forum/posts/passage_on_matrices_2327.html ...
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1. all the roots of the equation 11z^10 + 10 iz^9 + 10 iz -11 = 0 Lie a> inside |z| = 1 b> on |z|=1 c> outside |z|=1 d> cant say :P 2. 271 should be spilt in to how many parts so as to maximise thier product a> ...
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Q.1 If |z|=1 then prove that complex number denoted by (1+z)/(1-z) always lie in either of the two fixed perpendicular lines.. Q.2 If z1+z2+z3=0. then prove that the angle between any two pair of complex number is greater tha ...