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Q1. 18tan^{16}\frac{\pi }{18} - 816tan^{14}\frac{\pi }{18} + ... - 816tan^{2}\frac{\pi }{18} = _____ Q2. If ABC is a triangle and cot(A/2), cot(B/2), cot(C/2) are in GP, then minimum value of cot(B/2) is _________ Q3. Prove t ...

All the above questions of circles are of Bansal Class assignments. ...

How is aeronautical engineering frm institutes rather than IIts or NITs? ...

what's the pressure on the pakistan captain when pakistan need just 1 run to win from 10 overs with 9 wickets in hand???????? Ya allah, jeet kar presentation main angrezi bolni paregi !!! Santa and banta go to a forest. Sudde ...

please prove these identities : $ \sin (\frac{\pi}{2m})\sin (\frac{2\pi}{2m})\sin (\frac{3\pi}{2m})\dots\sin (\frac{(m-1)\pi}{2m}) =\frac{\sqrt{m}}{2^{m-1}} $ \sin (\frac{\pi}{4m})\sin (\frac{3\pi}{4m})\sin (\frac{5\pi}{4m})\ ...

In the xy plane the length of the shortest path from (0,0) to (12,16) that does not go inside the circle (x-6)2+(y-8)2=25 is : A) 10√3 B) 10√5 C) 10√3 + 5π/3 D) 10 + 5π Ans: C ...

x2+y2=1....is a circle.. so, y2=1-x2...is a circle.. implies.., y=± 1-x2 ... so what is the graph of y=± 1-x2 (sin x) please help...also point out wether or not the doubt makes any sense... ...

A piece of cheese is located at (12,10) in a co-ordinate plane. A mouse is at (4,-2) and is running up the line y= -5x + 18. At the point (a,b) the mouse starts getting farther from the cheese rather than closer to it. The va ...

The locus of the mid-points of the chords of the circle x2+y2-ax-by=0 which subtend a right angle at (a/2 , b/2) is _____________ . Ans : x2+y2-ax-by+ a2+b2/8 =0 ...

Which of the following aqueous solution of cation (s) gives (s) white ppt. with NaOH and 4 NH OH solution and formed ppt. is/are further completely dissolved in one of the excess reagent a) Cd2+ b) Cr3+ c) Sn2+  d) B ...

Let f(X) = ∫01 |t - x| tdt. 1) Number of common tangent to curve x2 + y2 = 4 and f(x) (A) 1 (B) 2 (c) 4 (D) infinite ...

hey ...in ur view...which is the best institute for b.tech in aeronautics???!.... is dis a gud field to make career in? n evn plz give suggestions fr iits which excel in dis aeronautics feild! ...

What is the effect of pressure on melting pt of ice? Shouldnt an increase in pressure increase the melting point? having a great controversy over this!plz answer. ...

Here’s how the Indian TV news channel NDTV 24x7 would report the Jack and Jill nursery rhyme. All names (except those of Jack and Jill), are fictitious. Prashant - TV Anchor Two persons have been injured in a freak climbing ...

plzzzzzzzzzzzzz can anyone give the download link for j d lee!!!!!! ...

For CBSE physics board practicals,we are required to do 1 experiment and 2 activities. there do we need to perform them and show the settings to the external? also in chemistry practicals for detection of the inorganic and th ...

Find the value of - *Image* btw...why is latex not working ? ...

(1) find all real values of x,y and z in x^{2}-\left|x \right|=\left|yz \right| .......(1) y^{2}-\left|y \right|=\left|zx \right| ........(2) z^{2}-\left|z \right|=\left|xy \right| ........(3) bhatt sir how can i solve these ...

Col - I a) Fries Rearrangement b) Elbs Persulphate Oxidaton c) Coupling Reacn. d) Pthalein Reacn. Col-II p) Resorcinol+Pthalic (Anhydride) in presence of cons.H2SO4 givng Fluorescein q) Phenyl Ethanoate an presence of AlCl3 g ...

PdSO4 and BaSO4 are insoluble in ____ and ___ ? ...

Name the compound which can be used in space vehicles both to absorb carbon dioxide and liberate oxygen ...

1. 7 rods A,B,C,D,E,F,G are joined in the form of 2 adjacent rectangles with F as the common side. Rectangle AECF and BGDF(Clockwise).All rods have equal cross sectional area A and equal length l.The thermal conductivities of ...

A very basic doubt everybody,still rectify. what's caustic potash,KOH isnt it. it was referred to in a question on identification and in answer booklet KCN has been used in it's place! ...

in fiitjee and brilliant full tests assertion reasoning have come back unlike the part test, and no integer type qes.. is there any chance that IITJEE 2010 will also be the same way??? will ASSERTION REASONING COME BACK?????? ...

1)Calculate the value of Avogadro constant from the internuclear distance of adjacent ion in NaCl is 0.282 nm and the density of soild NaCl formula units is 2.17 × 103 kg/m3 2) From the following standard electrode potential ...

Wats power electron?????? ...

Good Obj. Qn(s)... Needed to clarify & verify my answers, 'coz i don't have the list of correct ones. SINGLE ANSWER CORRECT *Image* *Image* MULTIPLE ANSWERS CORRECT *Image* Do post the answers u all got. ...

A bimolecular elementary reaction must be of second order [127] ...

IF a team of 11 players is to b selected from 8 batsmen..6 bowlers..2 wktkipers..4 all ruonders... 1>NO.of selections wen atmost 1 each of wktkipers n alrnder play? 2>NO.of selections wen 2 particular batsmen dont play ...

a good question for jee aspirants new to this forum...... *Image* suppose an insect (without wings) has to crawl from vertex A to vertex B of the cube of side a shown in the figure then find the minimum distance that the inse ...