List of top Mathematics Questions asked in AP EAPCET

If the angle between the straight lines joining the foci and the ends of the minor axis of the ellipse \[ \frac{x^2}{a^2}+\frac{y^2}{b^2}=1 \] is \(90^\circ\), then its eccentricity is

The radius of the circle having \[ 3x-4y+4=0 \] and \[ 6x-8y-7=0 \] as its tangents is

A circle is such that \[ (x-2)\cos\theta+(y-2)\sin\theta=1 \] touches it for all values of \(\theta\). Then the circle is

The least distance of the point \((10,7)\) from the circle \[ x^2+y^2-4x-2y-20=0 \] is

Suppose the slopes \(m_1\) and \(m_2\) of the lines represented by \[ ax^2+2hxy+by^2=0 \] satisfy \[ 3(m_1-m_2)-7=0 \] and \[ m_1m_2-2=0. \] Then which of the following is true?

Suppose that the sides passing through the vertex \((\alpha,\beta)\) of a triangle are bisected at right angles by the lines \[ y^2-8xy-9x^2=0. \] Then the centroid of the triangle is

The locus of midpoints of points of intersection of \[ x\cos\theta+y\sin\theta=1 \] with the coordinate axes is

In a Binomial distribution, if \(n\) is the number of trials and the mean and variance are \(4\) and \(3\) respectively, then \[ 2^{32}\cdot P\left(X=\frac{n}{2}\right)= \]

For a Poisson distribution, if mean \(=\ell\), variance \(=m\) and \[ \ell+m=8, \] then \[ e^4\left[1-P(X\gt 2)\right]= \]

Suppose \(P\) and \(Q\) lie on \[ 3x+4y-4=0 \] and \[ 5x-y-4=0 \] respectively. If the midpoint of \(PQ\) is \((1,5)\), then the slope of the line passing through \(P\) and \(Q\) is

The length of intercept of \[ x+1=0 \] between the lines \[ 3x+2y=5 \] and \[ 3x+2y=3 \] is

Suppose that the three points \(A\), \(B\) and \(C\) in the plane are such that their \(x\)-coordinates as well as \(y\)-coordinates are in G.P. with the same common ratio. Then the points \(A\), \(B\) and \(C\)

A bag contains \(4\) red and \(3\) black balls. A second bag contains \(2\) red and \(3\) black balls. One bag is selected at random. If from the selected bag, one ball is drawn at random, then the probability that the ball drawn is red is

If \(A\) and \(B\) are two events such that \[ P(B)\neq0 \quad \text{and} \quad P(\overline{B})\neq1, \] then \[ P(\overline{A}\mid \overline{B}) = \]

If the mean deviation of the data \[ 1,\ 1+d,\ 1+2d,\ \ldots,\ 1+100d \quad (d\gt 0) \] from their mean is \(255\), then \(d\) is equal to

The probability of getting a sum \(9\) when two dice are thrown is

Two brothers \(X\) and \(Y\) appeared for an exam. Let \(A\) be the event that \(X\) has passed the exam and \(B\) be the event that \(Y\) has passed. The probability of \(A\) is \[ \frac17 \] and of \(B\) is \[ \frac29. \] Then, the probability that both of them pass the exam is

Let \[ \vec F=2\hat i+2\hat j+5\hat k,\quad A=(1,2,5),\quad B=(-1,-2,-3) \] and \[ \overrightarrow{BA}\times \vec F=4\hat i+6\hat j+2\lambda\hat k, \] then \[ \lambda= \]

Let \(\vec a,\vec b,\vec c\) be unit vectors such that \(\vec a\) is perpendicular to the plane containing \(\vec b\) and \(\vec c\), and angle between \(\vec b\) and \(\vec c\) is \(\frac{\pi}{3}\). Then \[ |\vec a+\vec b+\vec c|= \]

\(\vec a,\vec b,\vec c\) are non-coplanar vectors. If \[ \vec a+3\vec b+4\vec c = x(\vec a-2\vec b+3\vec c) +y(\vec a+5\vec b-2\vec c) +z(6\vec a+14\vec b+4\vec c), \] then \[ x+y+z= \]

Three vectors of magnitudes \(a\), \(2a\), \(3a\) are along the directions of the diagonals of \(3\) adjacent faces of a cube that meet in a point. Then the magnitude of the sum of these vectors is

In any triangle \(ABC\), \[ \frac{\cos A}{a}+\frac{\cos B}{b}+\frac{\cos C}{c} = \]

In a triangle \(ABC\), if \[ r_1=36,\quad r_2=18 \quad \text{and} \quad r_3=12, \] then \[ s= \]

In a triangle \(ABC\), if \[ a=6,\quad b=5 \quad \text{and} \quad c=4, \] then \[ \cos2A= \]

If \(\vec a\) is collinear with \[ \vec b=3\hat i+6\hat j+6\hat k \] and \[ \vec a\cdot \vec b=27, \] then \[ |\vec a|= \]