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Out of 46 consecutive integers two are chosen...find the probability that their sum is odd ...

y = 16x2 + 8(a+5)x -7a -5 Find. prob of graf of y bein STRICTLY gr8er than ZERO for x ε [-20,0] PN : Ther is no condition given on a..... i dunno y........ i feel its an incomplete Questn .... if u tooo feel so do tell me ed ...

Those who hav faced the heat, pl tell me wether we are allowed to leave the exam center during the 12noon to 2pm break ??? ...

if the focus of parabola y2+8=4x coincides with one of the foci of ellipse3x2+by2-12x=0 then eccentricity of ellipse is a. 1/2 b.1/√2 c.1/4 d. none of these paragraph question ABCD is a trapezium in whichAD is perpendicular ...

find the atoms having same no of s and p electrons means no of electrons in s orbital=no of electrons in p orbital ...

*Image* plz explain how to do it... ...

guys lets discuss about which are the EXTREMELY important topics in each subject which one must o through in last two days. going through the important topics will i think help a lot to increase your marks. so which are those ...

at 25°C a solution containing 0.2 of polyisobutylene in 100cc of benzene,developed a rise of 2.4 mm at osmotic equilibrium.calculate the molecular weight of polysiobutylene if the density of solution is 0.88g/cc ...

1.) 0∫Πsin17xcos7x dx 2.) 0∫Π/2 sin8xcos8x dx 3.) 0∫Πsin3x cos6x dx. ...

*Image* mere ko ans nahi pata ...

1)if the conics whose equations are sin2θ x2+2hxy+32x + 16y+ 19=0 and cos2θ+x2+2h|xy+sin2θy2+16x+32y+19=0 intersect at four concyclic points then a)h+h|=0 b)h+h|=1 C)h=h| d)none q2)the no. of rational points on a circle ha ...

how does a SCR(silicon controlled rectifier) work? How is a SCR used in sawtooth wave oscillator ...

*Image* find the minimum forcesuch that df/dF=0(where f is the frictional force and F is the force) a)10 N b)50/3 N c)20 N d)50 N ...

IUPAC NAME OF CH3-C-O-CH2-C-OH || || O O ...

If a chord is taken at random in a circle, what is chance that its length is more than the radius of the circle? Pls provide method. ...

*Image* ans : i dunno...... ...

θ2,0 φ1 values varies as (Z2-R2)/R2 it will indicate the orbital a)dxy (b)pz (c)dx2-y2 (d) dz2 ...

Firse CHANGE!!!! DOES THE FOL. comp GIVE +VE neutral FeCl3 Test ??? If not y not ??? *Image* ...

7 men and 7 women are sitting around a table so that there is a man on either side of a woman, the number of sitting arrangements is (a) (7!)2 (b) (6!)2 (c) 6!7! (d) 7! ...

*Image* plz explain wt to do.. ...

koi bhi kar sakta hai bas [3] *Image* ...

PL. TELL ME OUT OF THE FOL. REAGENTS WICH ALL BRING INVERSION OF PRODUCT in their Substituition rextns............. SOCl2 + Pyridine SOCl2 + Ether HBr or HI if possible reason bhi batana...... Mostly to SN1 / SN2 jaise hi kuc ...

*Image* for the 22nd qn If two nos x and y are chosen from the set of all natural numbers the probability that x2+y2 is divisible by 5 must be ...

Q)A person standing on the bank of a river observes that angle of elevation of the top of the tree on the opposite bank of the river is 60° and when he retires 40m away from the tree the angle of elevation becomes 30°.The b ...

The series of natural numbers is divided into groups (1),(2,3,4),(5,6,7,8,9)....and so on. Find the sum of the numbers in the nth group. ...

The radius of the largest circle touhing the rectangular hyperbola xy=1 at (1,1) and axes is _________ i got 2- 2 it is the rong ans so pls give the soln and ans is 3-2 2 ...

The series of natural numbers is divided into groups (1),(2,3,4),(5,6,7,8,9)....and so on. Find the sum of the numbers in the nth group. ...

x=1+a+a2+a3+...to infinity.(|a|<1) y=1+b+b2+...to infinity.(|b|<1) Prove that 1+ab+a2b2+a3b3+...to infinity=xy/x+y-1 ...

how to find the sum of the series- (1)x2+x4+x6+....+x2n (2)1/x2+1/x4+....1/x2n. Please tell in a proper stepwise manner. ...