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lim(x→0) 1/x2-1/(xsinx) ...

evaluate !!!!!!!!!!!!!! 1. \int \frac{3x ^2 - 7 dx}{ (x^2 -4) ( x^2 + 1 ) } 2 . \int \frac{ dx}{ x.\sqrt{x^6 + 1} } 3. \int \frac{ \sqrt{x} dx}{(1+ x^2)^{\frac{7}{4}}} just practice problems [1] ...

*Image* why are they inverting the molecule in sawhorse presentation?????can anyone explain???? ...

1.COLUMN MATCH C-I C-II A)RAY OPTICS I)PARTICLE NATURE B)PHOTOELECTRIC EFFECT II)WAVE NATURE C)BOHR MODEL III)QUANTIZATION D)A RADIOACTIVE IV)EMIT ELECTROMAGNETIC WAVE MATERIAL 2 *Image* ...

1.what methods can be used to distinguish between cis and trans isomers of an complex???? ...

1...among the following C-O bond order is lowest in : (a)[Mn(co)6]+ (b)[Fe(co)5] (c) [Cr(co)6] (d)[V(co)6] 2..why Cr3+ never forms tetrahedral complexes even if V3+, Fe3+ form ???????? 3.. hich can xists as disastereomers ??? ...

Q1: If a,b,c are digits ,then rational number represented by 0.cababab.... is ? Q2: Calculate sum of products of ten numbers ±1,±2,±3,±4,±5 taking two at a time. Q3: Sum of series 1/ 3 + 7 + 1/ 7 + 11 + 1/ 11 + 15 ..... ...

Can we get a electrric shock from household utensils and water tap? from some days whenever i get up from mah sleep ...n touch the water sink tap....i get a shock....then wenever i touch the window grill...then also the same ...

wht is the ratio of molecular wieght of phenol : equivalent weight of phenol answer : 6 how many alpha Hydrogen are needed in claisen condensation answer 2 plz explain!! ...

Capacitance of an isolated spehere is increased n times when it is closed by an earthed concentric sphere. Then the ratio of their radii becomes??? ...

http://news.oneindia.in/2010/02/16/same-maths-science-syllabus-in-schools-from-2011.html New Delhi, Feb 16: All school boards across India will have a common mathematics and science syllabus for Class XI and XII from 2011. Bu ...

1) (Multiple Answers Correct) An elliptical cavity is carved within a perfect conductor. A +ve charge "q" is placed at the centre of the cavity. Then- *Image* A) Elec. field near A = Elec. field near B (in the cavity). B) Cha ...

INTEGER ANS TYPE QS 1) Let F (x) be a non- negative continuous function defined on R such that F (x) + F ( x+1/2) = 3 and the value of ∫[0--->1500] F(x)dx is 9000/a . Then the numerical value of ' a ' is . ...

*Image* A thin horizontal disc of radius R=10 cm is located within the cylindrical cavity filled with oil whose viscosity is ∩ =0.08P. the clearance between the disc and horz. planes of the cavity is equal to h=1.0mm.Find t ...

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1) If A and B are any two different square matrices of order n with A - B is non-singular A3 = B3 and A(AB) = B(BA) , then a) A2 + B2 = 0 b) A2 +B2 = I c) A2 + B3 = I d) A3 + B3 = 0 ...

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ppl please post expected marks in fiitjee ft-XI for comparision ...

INTEGER ANS TYPE 1) Let f(x) = 30 - 2x - x3 , then find the number of positive integral values of x which satisfies f ( f ( f ( x ) ) ) > f ( f ( -x ) ) . ...

*Image* Becoz the words are a bit unclear.."Metallic square of edge l in a vertical plane. Uniform Magnetic field perpendicular to plane of figure. The sqaure is being deformed into a rhombus due to force exerted on it by the ...

A comet is moving in a parabolic path around the Sun in the same plane as the orbit of Earth (without any collision with the Earth, obviously!). Determine the maximum time that this comet can spend within the Earth's orbit, w ...

In a standard YDSE setup, two transparent slabs are placed in front of each of the slits. At the centre of the screen, one may locate 1. Central maxima 2. First maxima 3. First minima 4. Neither of maxima or minima ...

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*Image* ans d Post the solution also......... ...

Some might-be-too-easy-type integrals, i don't know exactly :P. *Image* ...

1) How many number of possible condensation products are obtained when proponal and propanone are together treated with moderately concentrated alkali ? ...

*Image* ans c Plz post the soln......... ...

*Image* ans b ...

Q1. Which contains both polar and non-polar bonds? (a) NH4Cl (b) HCN (c) H2O2 (d) CH4 Q2. Spin magnetic moment in BM of Hg[Co(SCN)4] is (do we consider S as donor atom or N?) Q3. Ionic radii of (a) Ti4+<Mn7+ (b) 35Cl- < ...