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If the pair of lines x^2 - 2pxy - y^2=0 and x^2 - 2qxy - y^2=0 are such that each pair bisects the angle between the other pair, then pq equals.? The solution is The second pair must be identical with x^2 - y^2/1-(-1) =xy/-p ...

plz suggest me sum goodbok fr doin functions nd calculus fr jee ...

A plant virus is found to consist of uniform cylindrical particles of 150 angstrom in diameter and 5000 angstrom long. The specific volume of the virus is 0.75cm3/g.If the virus is considered to be a single particle, find its ...

Q) Find f(x) if \int_{1}^{xy}{f(t)dt} = y \int_{1}^{x}{f(t)dt} + x \int_{1}^{y}{f(t)dt} ...

1. limn→∞ (4n+5n)1/n= 2. limn→∞ ( xn + yn )/(xn - yn ) where x>y>1 is equal to 3)limx→ - ∞ {√(x2 - x + 1) - ax - b} = 0. then (a,b) is equal to 4)lim x→0 (cos(sin x) - cos x)/x4 is equal to PLEASE SOLVE ...

If A+B+C = π (pi radian) Prove that: cosA/sinBsinC + cosB/sinCsinA + cosC/sinAsinB =2 ...

a dipole is placed with its two ends having charges q and -q 2L distance apart . An ant having charge +Q on his body moves fom infinity to a point r distance apart from dipole along dipole equatorial line . wt is the work don ...

find the bisector of the lines 3x+4y+7=0 & 4x-3y-2=0 containing point (4,5) ...

1.. 2 boats A and B move away from buoy anchored @ the middle of the river along mutually perpendicular straight lines,the boat A along the river and the boat B across the river. Having moved off an equal distance from the bu ...

A man travelling in a fast moving train watches the nearby objects moving in the opposite direction, but the distant objects appear to be stationary. WHY??? ...

Find the eqn. of the line which is at distance 5 from origin it makes an angle of 120o with +ve x-axis. ...

IIT JEE Notification INDIAN INSTITUTES OF TECHNOLOGY JOINT ENTRANCE EXAMINATION 2011 (JEE-2011) For admission to undergraduate courses at all IITs, IT-BHU Varanasi and ISM Dhanbad Examination Schedule: April 10, 2011 : Paper ...

Let S_{n} = \sum_{1}^{n}{\frac{n}{n^{2}+kn+k^{2}}} and T_{n} = \sum_{1}^{n-1}{\frac{n}{n^{2}+kn+k^{2}}} for n=1,2,3.......then, (A) Sn < Π/3√3 (B) Sn > Π/3√3 (C) Tn < Π/3√3 (D) Tn > Π/3√3 plz somebody ...

1.THE POINTS (a,b), (c,d),(a,d),(c,b) TAKEN IN ORDER, WHER a,b,c,d are real numbers are: a. COLLINEAR b. VERTICES OF A SQUARE c. VERTICES OF A RHOMBUS d. CONCYCLIC given ans:: b but my answer:: d PLEASE EXPLAIN IN DETAILS ...

what is the use of first slit(barrier slit) in YDSE? ...

can anybody plzz help me in these typo questions... 1)a police jeep is chasing a culprit going on a motorbike. the motorbike crossess a turning at a speed of 20m/s the jeep follows it at a speed of 25m/s ,crossing the turning ...

2 metal spheres of radii a and b are connected by a thin conducting spheres.There sep is very arge compared to there dimensions. Find the equivalent capacitance of the system. Since they are connected by a wire so the two sph ...

the value of: lim [ |sin x|/|x| ] x→0 [.] represents greatest integer function |.| represents modulus.... ...

*Image* Two blocks of mass m lie on smooth table having reflecting surfaces AB and CD.An object O is placed b/w them and system is released.Find acc. of one image wrt other. Ignore friction ans: 7g/16 ...

If 1/14 + 1/24 + 1/34 +.......∞ is π4/90 , then 1/14 + 1/34 + 1/54 +.......∞= a) π4/96 b) π4/100 c) π4/121 d) π4/108 Plz show the steps also as I dont even know how to start this prob... here,π is pi. ...

If sec(x-y), secx , sec(x+y) are in AP, then (cosx)(sec y/2 )= a)±√3 b)±√5 c)±√7 d)±√2 Plz show the steps for this prob also.. ...

The unit's digit of 1! +2! +3!+.....+97! is a)3 b)4 c)5 d)6 explain yur answer with steps... ...

Passage For x ε (0 , Π/4), Let Sn = \sum_{r=1}^{2n}{sin(sin^{-1}x^{3r-2}}) Cn = \sum_{r=1}^{2n}{cos(cos^{-1}x^{3r-1}}) Tn = \sum_{r=1}^{2n}{tan(tan^{-1}x^{3r}}) 1) The correct order of Sn, Cn, Tn is 2) The value of \lim_{n\ ...

Prove that 1 + 1/2 + 1/4 + 1/7 + 1/11 + ............................ <= 2*pi T(n) = \frac{2}{2 + n(n-1)} ...

Chord of contact of pair of tangents drawn from , each point on the line 2x+y=4 , to the parabola y2=4x pass through which fixed point?? ...

if 4 real nos p, q, r & s are such that, pr=2(q+s) prove, at least one of the 2 foll eqns x2+px+q=0 and x2+rx+s=0 my approach: i found out the discriminant of the 2 which came to be as p2-4q and r2-4s now one must be positive ...

If m is the slope of a line and 3m+4=3m+2 then does this line exist or not?? ...

If the locus of the mid points of the chords of the circle x2+y2=16 which are tangents to the hyperbola 9x2-16y2=144 is given by (x2+y2)a= bx2-cy2 then find the value of a+b+c. ...

1 \int_{0}^{\infty }\frac{dx}{x^{n}+1},n=natural\: no ...

Anybody knows how to subscribe to getting messages (through an email) when a reply to a question is posted? ...