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Q) If y= cosx+ cosx+ cosx ...... Prove that (2y-1)dy/dx+sinx=0. ...

Some of the questions are quite "silly" and easy , but i just wanted to create some questions!! 1) The maximum and minimum radius of curvature of wave fronts of a concave and convex mirror is/are 1. 0 2. R 3. R/2 4. Infinity ...

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out of water and HF, water has higher BP. what in case of water and ammonia??? ...

PERIODIC TABLE:-Name the group having metal,nonmetal,liquid as well as gas at room temperature ...

the 2 pi bonds take shape of a cylinder in acetylene. does it happen in case of nitrogen too???. if yes, its ok.....if no, why??????? ...

\int_{\pi}^{2\pi }{[2sinx]} where [] is gint... vaise solve karne par ans -5 pi/3 hai par graph se ans -2pi aa raha hai....... why the diff?????? i know i am commiting a blunder..but that will surely help me in future ...

What is condition that circles z\bar{z}+\bar{a_{1}}z+a_{1}\bar{z}+b_{1}=0 and z\bar{z}+\bar{a_{2}}z+a_{2}\bar{z}+b_{2}=0 where b_{1},b_{2} \epsilon R intersect orthogonaly??? ...

A: If z is a complex no. (z≠1) then \left|\frac{z}{\left|z \right|}-1 \right|\leq \left|argz \right| R:In a unit circle chord AP≤ arc(AP) ...

A:If x2+x+1=0,then value of (x+\frac{1}{x})^{2}+(x^{2}+\frac{1}{x^{2}})^{2}+......+(x^{21}+\frac{1}{x^{21}})^{2} is 42 R:ω,ω2 are roots given by equation x+\frac{1}{x}=-1,x^{3}+\frac{1}{x^{3}}=2 ...

The Ksp values for Fe(OH)3 and Al(OH)3 are 1.1*10-36 and 1.8*10-33 respectively.A solution is 0.1M in Fe3+ and Al3+ Q1At what OH- concentration will Al(OH)3 begin to precipitate? Q2At what OH- concentration will Fe(OH)3 b ...

Pls post solution of test which you posted (T-276). plzzzzzzzzzzzzz. :) ...

At 51.2Degree celcius,the pressure of a certain mass of acetic acid vapour was found to be 25.98mm/hg in a container of volume 359.8 ml for the equilibrium (CH3COOH)2≡2CH3COOH. The vapour on condensation and titration requi ...

suppose there are 997 points given in a plane. if every two points are joined by a line segment with its mid point coloured in red, show that there are atleast 1991 red points in the plane. can u find a special case with exac ...

WHY THE MAGNETIC FIELD LINES IN A TOROID R CONFINED TO WITHIN IT's CORE...BUT NOT SO IN CASE OF SOLENOID.... ...

given: f(x) + f(1/x)=f(x)*f(1/x); f(4)=17; question:find f(7)? ...

Q) An Electrical System has open-closed switches S1,S2,S3 as Shown Below: *Image* The Switches operate independently of one another and the current will flow from A to B either.If P(S1)=P(S2)=P(S3)=0.5 .Find that the circuit ...

made up this ques.... if a uniform chain is hanging from two points, wat will be its shape? (parabola/hyperbola/part of ellipse etc...) I'm almost dead sure that it will be a parabola...but how will we prove it??? part 2... w ...

Is my graph correct for activity vs time graph, T-half life *Image* They asked to plot activity, so i multiplied Λ - lamda on y axis, is it correct or only the amount present is correct?? ...

water forms H3O +.... y doesnt it form H4O ++ ??????????? ...

*Image* why maximum no. of H-bonds in HF is 2, whereas that in water is 4?? (refer to the highlighted portion..) and why are the bond lengths different for different H-bonds from the same molecule? (in the pic, bond lengths a ...

plz ans bataoo........mera 3 aa raha hai...... Let α,β,γ are roots of ax3+bx2+cx+d=0 then \sum{(\frac{\alpha +1}{\alpha -1})(\frac{\beta +1}{\beta -1})}=? ...

A non zero polynomial with real coefficients has the property that f(x)=f'(x).f"(x). The leading coefficient of f(x) is? A.) 1/6 B.)1/9 C.)1/12 D.)1/18 ...

KIRTI KUMAR wish a big question? Acc. to einstein's equation m=m0/sqrt(1-(v^2/c^2)) for a photon v=c; therefore,m=infinity; hence its momentum is huge... but it does not have any impact why?? akshay answered:Akshay no m is no ...

if u think differently or u think that u can change the future with for different but new thoughts then please do contribute in this forum ...

http://www.ben.mills.btinternet.co.uk/chemistry/dict.htm a site worth visiting....... SOURCE : Eureka ne bataya He he... [4] [3] [1] ...

wat is meant by ambient temperature conditions? wat is calld a surfactant? ...

As popular on the site now-a-days this thread is meant for learning conics. So anyone who want to learn conics can come out here and post some intreresting questions so,happy coniicing[1][1][1] ...

Two identical but independent monochromatic sources of light cannot be coherent.Why? ...

\int \sqrt{(x^4 + 1)/ (x^2 + 1) } ∂x ......................... (AKAND NE KAHA ISLYE) is this integrable????? IF YES, HOW?????? GIV DA FINAL ANS THEN........ ...