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u = √a2cos2@ +b2sin2@ + √a2sin2@ +b2cos2@ then the difference b/w max and min values of u2is ? ...
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let p be a statement '' x is an irrational number '' q be a statement '' y is a trancedental number'' and r be the statement '' x is rational iff y is trancedental number assertion : r is equivalent to either p or q reason :r ...
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in expansion of 1/(1-ax)(1-bx) = a0 + a1x +... an then wat is an? ...
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normal to a curve at x,y meets y=0 at a point if the distance of this point from origin is double the x coordinate of point then curve is? ...
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please give me as many alternative ways as possible the value of \sum_{k=1}^{10}{sin(2k\pi /11)+icos(2k\pi/11)} ...
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2 different lines meet a circle |z| =r in the points p , q , r ,s lines are not parrallel . then prove that these lines meet in the point z given by \frac{p^{-1} + q^{-1} -r^{-1}-s^{-1}}{p^{-1}q^{-1} -r^{-1}s^{-1} } =z ...
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please give detailed solution ... find the orthocentre of triangle whose vertices are z1 z2 z3 ... ...
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please give a detailed solution... dont give me hints i tried it many times before editing [2] can u please tell me equation of line perpendicular to az + \bar{a}\bar{z}+b=0 yaar actually i cant make out difference b/w two eq ...
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i have some basic doubts ... cyanide ion and iodide ion giver ppt with silver nitrate ???? is iodide better neucleophile than bromide ? which is stronger neucleophile ch3- or nh2- ??? arrange in order of strength of bases [de ...
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[2] [2] pls help yaar mujhe chemical equillibrium main dikkat aarahi hai pls help karo badi basic doubts aarahi hai ..... jaise yeh question hai 3g mole of pcl5 is heated in a flask of 4ltrs at equillib it dissociates to pcl3 ...
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a bag contains 3 red 4 white balls and another ball contains 4 red 3 white a die is cast if face 1 or 3 turns up a ball is taken from the first bag and if any other face turns up . a ball is taken from second bag find the pro ...
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if the prob of horse p winning a race is 1/ 4 and that of horse Q winning the race is 1/ 6 find the prob that none will win ...
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a bag contains 5 black and 3 red balls a ball is taken out of the bag and is not returned then wat is the prob of drawing a red ball in the second draw if the ball in first draw is red please explain me the solution in detail ...
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divide n distinct objects into l groups containing p objects each m groups containg q objects each then find the way of group formation and also find the permutation of these groups ...
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sum of numbers of using digits 1 2 3 4 and also find the same for 2 0 3 1 and 2 2 0 1 i actually wanna know the concept how we proceed ..... ...
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consider seven digit numbers x1 x2 .... x7 ≠0 having the prop that x4 is the greatest digit and the digit to left and right of x4 are in decreasing order then total number of such numbers in which all the digits are distinc ...
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question 1 in how many ways the number 10800 can be resolved as product of 2 factors ...
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wat is value of sin(log ii) iiii this power upto infinity = a + ib find them ....find b/a and a2 +b2 ...
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a bag contains 5 white and 9 black balls 3 balls are drawn twice . balls are replaced before the second draw. what is the prob that in the first draw 3 white and in second draw 3 lack balls will be drawn ...
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two person Aand B throw a coin alternatevely till one of them gets ' head' and wins the game. find the respective probabilities of winning ...
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i dunt know why i am getting wrong answer for so easy question so i will post my answetr and the co0rrect answer also 7 cards are drawn at random from a pack of 52 cards what is probability that 3 red 4 black answer 325 /3915 ...
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i have some doubts in hcv hope you all will help me hc verma page 364 volume 2 objective 1 question 9 .... my answer is coming out a and i dun knoe wat mistake m making question 10 and objective 2 question 5 both contradict i ...
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addition of D20 TO 2 methyl 2 butene (in presence of D+) gave alcohol (CH3)2-C(OD)CHDCH3 . when reaction was analyzed it was found it contains almost no deuterium what does this tell about the reaction mechanism ? please guid ...
