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Find the inverse of y=\frac{10^x-10^{-x}}{10^x+10^{-x}} . ...
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*Image* Find the missing number: (a) 72 (b) 70 (c) 68 (d) 66 ...
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1) \begin{bmatrix} 2sin\theta -1 & sin\theta & cos\theta \\ sin(\pi +\theta )& 2cos\theta -\sqrt{3} & tan\theta \\ cos(\theta -\pi )& tan(\pi -\theta ) & 0 \end{bmatrix} The value of θ in [0,2π] such that the above matrix i ...
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CAN ANYONE PLEASE TELL ME IN PLAIN WORDS (=> NO LINKS, PLEASE) WHAT A THERMOCOUPLE IS??? ...
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What is the difference between: (i) Aeronautical engineering (ii) Aerospace engineering (iii) Astrophysics ?? This is not a ridde or something.....pls clarify asap ...
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*Image* I GOT ANSWER AS 3 PLS POINT OUT THE MISTAKE IN MY SOLUTION: mA(9)=mBvB (Since collision is elastic) Thus, vB=9/2 ms-1 Collision between B and C is inelastic so 2mvB=3mvcommon So vcommon=3 ms-1 But ans given is 4 ms-1 ...
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1) A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to: (a) x2 (b) ex (c) x (d) logx ...
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This year's IPL is going to be a damp squib according to me. When in India, the summer will be at it's highest, at the same time, SA will be freezing to the marrow. Not exactly the ideal scenario for the excitement of T20 cri ...
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A man of mass 'm' stands on a platform of mass 'M' kept on a ice block (friction = 0). If the man walks on the platform with a velocity 'v' w.r.t the platform, the relative velocity of the platform, the relative velocity of t ...
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Two bubbles (same liquid) of radius r and R (R>r) are connected by tube of negligible volume. The tube has a valve. When the valve is opened, what will happen to the sizes of the bubbles. (qualitative and not quantitative ...
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IN HOW MANY WAYS CAN 10 STUDENTS BE DIVIDED INTO THREE TEAMS SO THAT ONE TEAM CONTAINS 4 STUDENTS AND THE OTHER TWO TEAMS CONTAIN 3 STUDENTS EACH..... (I FORGOT THE OPTIONS, SORRY) ...
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If\; f(x)=x^{101}+2x^{11}+2x+7\; and\; g(x)\; is\; the\; inverse\; of\; f(x),\; then\; g'(1)\; is?? ...
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ex is defined as e^x= \frac{x^0}{0!}+\frac{x^1}{1!}+\frac{x^2}{2!}+\frac{x^3}{3!}+.......... for x=0, e^0= \frac{0^0}{0!}+\frac{0^1}{1!}+\frac{0^2}{2!}+\frac{0^3}{3!}+.......... but we know that e0 is 1 So 1= \frac{0^0}{0!}+\ ...
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1) If \alpha , \beta , \gamma and \delta are the angles made by a line with the diagonals of a cube, then cos^2\alpha +cos^2\beta +cos^2\gamma +cos^2\delta is equal to : (a) 0 (b) 1 (c) 2/3 (d) 4/3 ...
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Those who are appearing for BITSAT 2009 can take a printout of their hall tickets here http://www.bitsadmission.com/bitsat/hallticketprint/HTCandidateLogin.aspx came yesterday itself!!! ...
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For x>0, \lim_{x\rightarrow 0}\left[(sinx)^{\frac{1}{x}}+\left(\frac{1}{x} \right)^{sinx} \right] is (a) 0 (b) -1 (c) 1 (d) 2 ...
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*Image* SOMEONE PLS EXPLAIN THE SOLUTION!!! ...
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1) A moving hydrogen atomin ground state, causing radiation of several wavelengths, the longest of which is 1880 nm. From the consideration of the loss in KE in collision, what is the velocity above which the atom has to move ...
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http://home.comcast.net/~wolfand/ ^^^ Visit this website That's the best website for preparation......even better than TargetIIT!!! Enjoy ur time! PS and pls post ur "kind" comments in my chatbox only http://targetiit.com/cha ...
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PLS DO 2ND AND 3RD QUESTIONS AND PLS INCLUDE COMPLETE SOLUTIONS [1] LetA,B, C be three sets of complex numbers as defined below A = {z : Im(z)≥1} B = {z :|z-2-i |=3} C = {z :Re((1-i)z) = 2 } Q.1 The number of elements in th ...
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Two trains A and B are moving with speeds 20 m/s and 30 m/s respectively in the same direction on the same straight track, with B ahead of A. The engines are at the front ends. The engine of train A blows a long whistle. The ...
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Just wanted to give u guys the formulas in properties of triangles. First of course is a diagram, which indicates all the parameters of a triangle I made it with paint...so pls forgive me if it is untidy *Image* ...
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A closed vertical cylinder is divided into two parts by a frictionless piston, each part contains one mole of air. At 27°C, the volume of the upper part is 4 times the volume of the lower part. Calculate the temperature at w ...
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A 10 cm column of air is trapped by a 8 cm column of Hg in a capillary tube.....the tube is horizontallly fixed as shown in the figure at 1 atm pressure. Calculate the length of air column when the tube is fixed: *Image* (a) ...
