Recent questions in Class11

The number of common tangent to the circle $x^2+y^2=4$ and $x^2+y^2-6x-8y=24$

asked Apr 8, 2014 by meena.p

1 answer

The circle passing through the point $(-1,0)$ and touching the y-axis at $(0,2)$ also passes through the point .

asked Apr 8, 2014 by meena.p

1 answer

The center of circle inscribed in square formed by the lines $x^2-8x+12=0$ and $y^2-14\;y+45=0$ is

asked Apr 8, 2014 by meena.p

1 answer

If the tangent at the point P on the circle $x^2+y^2+6x=2$ meets a straight line $5x-2y+6=0$ at a point Q on the y-axis , then the length of $PQ$ is

asked Apr 8, 2014 by meena.p

1 answer

Find the point of intersection of the line $4x-3y-10=b$ and circle $x^2+y^2-2x+4y-20=0$

asked Apr 8, 2014 by meena.p

1 answer

There are 10 points in a plane out of these 6 are collinear. If N is the number of triangle formed by joining these points. Then

asked Apr 8, 2014 by meena.p

1 answer

The line $p(p^2+1)x-y+q=0$ and $ (p^2+1)^2x +(p^2+1)y+2q=0$ are perpendicular to a common line for

asked Apr 8, 2014 by meena.p

1 answer

The shortest distance between the line $y-x=1$ and the curve $x=y^2$ is

asked Apr 8, 2014 by meena.p

1 answer

The perpendicular bisector of the line segment joining $P(1,4)$ and $Q(K,3)$ has y-intercept $-4$, Then a possible value of $k$ is

asked Apr 8, 2014 by meena.p

1 answer

A straight line through the point $A(3,4)$ is such that its intercept between the axis is bisected at A. Its equation is

asked Apr 8, 2014 by meena.p

1 answer

If one of the lines given by $6x^2-xy+4cy^2=0$ is $3x+4y=0$ then c equals

asked Apr 8, 2014 by meena.p

1 answer

If the sum of the slopes of the lines given by $x^2-2cxy-7y^2=0$ is four times their product c has the value.

asked Apr 8, 2014 by meena.p

1 answer

Let $A(2,3)$ and $B(-2,3)$ be vertices of a triangle ABC. If the centriod of this triangle moves on the line $2x+3y=1$ then the locus of the vertex C is the line .

asked Apr 8, 2014 by meena.p

1 answer

Locus of centriod of the triangle whose vertices are $(a \cos t, a \sin t),(b \sin t,-b \cos t)$ and $(1,0)$ where t is a parameter is

asked Apr 8, 2014 by meena.p

1 answer

If the pair of straight lines $x^2-2pxy-y^2=0$ and $x^2-2qxy-y^2=0$ be such that each pair bisects the angle between the other pair then,

asked Apr 8, 2014 by meena.p

1 answer

The pair of lines represented by $3ax^2+5xy+(a^2-2)y^2=0$ are perpendicular to each other for

asked Apr 8, 2014 by meena.p

1 answer

If the pair of lines $ax^2+2hxy +by^2+2gx+ 2fy+c=0$ intersect on the y-axis then

asked Apr 8, 2014 by meena.p

1 answer

A triangle with vertices $(4,0),(-1,-1),(3,5)$ is

asked Apr 8, 2014 by meena.p

1 answer

If a,b and c are in A.P thin the straight line $ax+by+c=0$ will always pass through line $ax+by+c=0$ will always pass through a fixed point whose coordinates are

asked Apr 8, 2014 by meena.p

1 answer

Given the points $A(0,4)$ and $B(0,-4)$ the equation of the locus of the point $P(x,y)$ such that $|AP-BP|=6$ is

asked Apr 8, 2014 by meena.p

1 answer

The set of lines $ax+by+c=0$ where $3a+2b+4c=0$ is concurrent at the point.

asked Apr 8, 2014 by meena.p

1 answer

The area enclosed within the curve $|x|+|y|=1$ is

asked Apr 8, 2014 by meena.p

1 answer

If $z$ is a complex number such that $\left|\; z \;\right| \geq 2$ then the minimum value of $\large\left|\normalsize z \normalsize + \large\frac{1}{2} \right |$

asked Apr 6, 2014 by balaji.thirumalai

0 answers

The statement $\sim(p \leftrightarrow \sim q)$ is

asked Apr 6, 2014 by balaji.thirumalai

1 answer

A bird is sitting on top of a vertical pole 20m high and its elevation from point O on the ground is 45 $^{\circ}$. It flies off horizontally straight away from the point O. After one second, the elevation of the bird from O is reduced to 30$^{\circ}$. Then the speed in m/s of the bird is?

asked Apr 6, 2014 by balaji.thirumalai

0 answers

The variance of the first 50 even natural numbers is:

asked Apr 6, 2014 by balaji.thirumalai

1 answer

If the coefficients of $x^3$ and $x^5$ in the expansion of $(1+ax+bx^2)(1-2x)^{18}$ in powers of $x$ are both zero, then $(a,b)$ is equal to:

asked Apr 6, 2014 by balaji.thirumalai

0 answers

The image of the line $\large\frac{x-1}{3}$ $ = $$\large\frac{y-3}{1}$$=$ $\large\frac{z-4}{-5}$ in the place $2x-y+z+3=0$ is the line:

asked Apr 6, 2014 by balaji.thirumalai

0 answers

A local TV company produced a batch of 100 TVs. Four of the TVs are defective. What is the probability a customer randomly selects three good TVs ?

asked Apr 2, 2014 by balaji.thirumalai

1 answer

There are 10 cinema tickets with seat number from 1 to 10 in a row. Ram and Shyam are friends and they do not want to be apart. If they are asked to randomly pick up their tickets, what is the probability for Ram and Shyam to sit next to each other?

asked Apr 2, 2014 by balaji.thirumalai

1 answer

What is the probability that a leap year chosen at random will have 53 Sundays?

asked Apr 2, 2014 by balaji.thirumalai

1 answer

Find the angle of intersection of two circles?

asked Mar 27, 2014 by balaji.thirumalai

1 answer

For two variables $x$ and $y$ with the same mean the two regression lines are $x+2y-5=0$ $ 2x+3y-8=0$ and variance $(x)=12$ Then $ \sigma_y$ is

asked Mar 26, 2014 by balaji

1 answer

Find the equation of normal in slope form for the hyperbola?

asked Mar 26, 2014 by balaji.thirumalai

1 answer

The radius of general equation of circle is

asked Mar 25, 2014 by balaji.thirumalai

1 answer

Find the centre and radius of the circle $2x^2+2y^2-8x-7y=0$

asked Mar 21, 2014 by balaji.thirumalai

1 answer