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If m tan(θ-30)=n tan(θ+120), then m+n/2(m-n) is equal to: a)tan2θ b)cos2θ c)sin2θ d)cot2θ ...

find all the linear functions from [-2,4] to [10,15] which are onto. ...

A compound contains 28% N and 72% of a metal by weight.3 atoms of metal combine with 2 atoms of N.Find the atomic weight of metal: a)38 b)30 c)24 d)18 ...

A compound contains atoms of three elements:A, B and C.If the oxidation number of A is +2,B is +5 and C is -2,the possible formula of the compound is: a)A3(BC4)2 b)A3(B4C)2 c)ABC2 d)A2(BC3)2 ...

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THE TEN THINGS KAPIL SIBAL MUST DO FOR INDIAN EDUCATION! I write this with a sense of unfulfilled hopes. Last time, when Congress came to power, I was very excited to get a call from Dr Montek Singh Ahluwalia one fine day, as ...

1) If f:R→R is a function satisfying the property f(2x+3) + f(2x+7) = 2, x#R, then the period of f(x) is? 2)If f(x) = sin(\sqrt{\left[\lambda \right]}x) is a periodic function with period \prod{} , where [.] represents grea ...

actually its not a question it something hat i hv thought over for a long time..... we generally assume in guasss law that electric field is symmetric like a pnt charge that can be easily proved now lets try to find the elect ...

In a uranium ore sample, the ratio of U238 to Pb206 nuclei is 1/3 Assuming that all the lead present in the ore is final stable product of U238 , find the age of the ore (in 109 year) if half life of U238 is 4.5 × 109 year. ...

Find the value of: \sqrt 3 \csc 20^{\circ} - \sec 20^{\circ} ...

Is there any disrimination towards North indians in NIT-trichy,Warangal,surathkal,calicut ?? And are north indians made targets by college gangs in MNIT-allahabad,NIT bhopal ?? ...

The number of non- negative integral solutions of x1+x2+x3+x4=20 with at least one of the xi ( i=1,2,3,4) is even is: (a) 1500 (b) 1470 (c) 1450 (d) 1606 ...

The question in which I am having a problem is as follows: Prove that the point on the curve y2=x,at which a tangent makes an angle of 450 with the x-axis is ( 1/4 , 1/2 ) My doubt: If we find the equation of a tangent at the ...

see this http://www.artofproblemsolving.com/Forum/viewtopic.php?f=296&t=355045 ...

y^(1/n)+y^(-1/n)=2x then (x^2-1)y''+x y'=n^2 y proof ...

\textrm{if the equation \: \: }x^4 + px^3 +qx^2 + rx+ 5= 0 \textrm{\: \: has four positive real roots find minimum value of pr } 2) without use of CALCULUS prove that \textrm{if the equation \: \: } x^3 +ax+ b= 0 \textrm{\: \ ...

1) If 5 litres of H2O2 produce 50 lites of O2 at NTP, H2O2 is a)50V b)10V c)5V d)250V I am not able to understand this question. What is it asking? 2)Assuming that petrol is octane & has density 0.8 g/ml, 1.425 litres of petr ...

1.The equation of the parabola whose vertex is origin, axis is along y-axis and which passes through the point (2,1) is 2.The vertex and focus of a parabola are at a distance are at a distance of h and k units on positive x-a ...

1.An electrochemical cell is constructed by immersing a piece of copper wire in 50ml of 0.1M CuSO4 soln and " " ' ' zinc wire in " " " ZnSO4 soln. If 50 ml of 1.5 M NH3 is added to CuSO4 soln then Emf of cell is= Ans 0.715V g ...

find dy/dx where y=tan-1(x/√(1-x2)) ...

find dy/dx, y=log(tanlogx) ...

sorry ...

1..what are different subjects in first year in IITs (eng.)?????? 2..do we require class 11 and 12 books for it?????? ...

Find out the coordinates of the extremities of the latus rectum of the parabola x2+y2-16x-16y+2xy+32=0. ...

m getting 151 state rank in himachal. ist round seat allotment closed at 142 state rank in himachal. is there any chance for me to get a seat in second round in nit hamirpur. there is a gap of 10 seats .please tell is it poss ...

Suppose you have a cloth bag with one marble inside-either black or white, you don't know which. You add a white marble, shake the bag, and take out a marble at random. It's white. What are the odds that the remaining marble ...

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\boxed {1} \int_{0}^{\pi}{e^{\sec x}}\sec^3x\left(\sin^2 x+\sin x+\cos x+\sin x\cos x \right)\mathrm{dx} \boxed {2} Two rational numbers m and n are selected t random . the probability that m2+n2 is a multiple of 7 is ? \boxe ...

find real roots of equation \fn_cs \sqrt{x+2\sqrt{x+2\sqrt{x+........+2\sqrt{x+2\sqrt{3x}}}}} =x \fn_cs \left ( \textbf{n radical signs} \right ) 1) tell full solution wid explanation 2) what is radical signs?? ...

I'm working in firefox, and latex is not working here. Can somebody provide me with a link from where I can download free full version eqn editor for Word ? Sincere thanks in advance. [1] ...