List of top Mathematics Questions asked in AP EAPCET

P is a point of intersection of the circles \( S = x^2 + y^2 - 6x + 2ky + 1 = 0 \) and \( S' = x^2 + y^2 + 2kx - 6y - 7 = 0 \). If the tangent at P to \( S = 0 \) passes through the centre of \( S' = 0 \), and the tangent at P to \( S' = 0 \) passes through the centre of \( S = 0 \), then the radius of \( S' = 0 \) is:

The equation of a tangent to the circle \(x^2 + y^2 + 2x - 12y - 132 = 0\) which is perpendicular to the line \(12x + 5y + k = 0\) is:

If the mid-point of the chord intercepted by the circle \(x^2 + y^2 - 8x + 10y + 5 = 0\) on the line \(2x + y + 2 = 0\) is \((h, k)\), then \(k + 4h =\) ?

Let \(Z\) be the point of intersection of the axis and the directrix of the parabola \(4x^2 - 12x + 4y + 5 = 0\). If \(S\) is its focus, then the point which divides \(SZ\) in the ratio \(2:1\) is:

If a focal chord of the ellipse \(\frac{x^2}{25} + \frac{y^2}{16} = 1\) meets its minor axis at the point \((0, 3)\), then the perpendicular distance from the centre of the ellipse to this focal chord is:

If \(2x^2 - 5xy + 2y^2 = 0\) represents two sides of a triangle whose centroid is \((1,1)\), then the equation of the third side is:

If \( PS \) is the median of the triangle with vertices \( P(2, 2) \), \( Q(6, -1) \), and \( R(7, 3) \), then the equation of the line passing through \( (1, -1) \) and parallel to \( PS \) is:

If \((l_1, m_1, n_1), (l_2, m_2, n_2)\) are the direction cosines of two lines, then \[ (l_2m_1 - l_1m_2)^2 + (m_1n_2 - m_2n_1)^2 + (n_1l_2 - n_2l_1)^2 + (l_1l_2 + m_1m_2 + n_1n_2)^2 = \]

Let the curve \(x^2 + 2y^2 = 2\) intersect the line \(x + y = 1\) at two points \(P\) and \(Q\) and \(O\) be the origin. If \(\theta\) is the acute angle between the lines \(OP\) and \(OQ\), then \(\tan \theta =\)

Two sides of a rhombus are along the lines \( x - y + 1 = 0 \) and \( 7x - y - 5 = 0 \). If its diagonals intersect at \( (-1, -2) \), then one of the vertices of this rhombus is:

A point on the plane passing through the points \((\sqrt{2},1,4), (0,-1,0)\) and \((0,0,1)\) is:

If \(A = (2, 3, 4)\) and \(B = (-2, 3, 4)\), then the locus of a point \(P\) such that \(PA + PB = 4\) is:

A box contains 5 white balls and 7 black balls. In how many ways can 3 balls be drawn from the box such that at least one black ball is included?}

If the difference between the mean and variance of a binomial variate is \( \dfrac{5}{9} \), then the probability of getting 2 successes for an event when the experiment is conducted 5 times is:

If the equations \( x = t^2 + t + 1, \quad y = t^2 - t + 1 \) represent a curve \( C \) with parameter \( t \), then the Cartesian equation of \( C \) is:

If \( A, B \) and \( C \) are three events of a random experiment with \( P(A) = 0.4 \), \( P(B) = 0.3 \), and \( P(A \cap B) = 0.2 \), then the probability that neither A nor B occurs is:

Two dice are rolled. If \( A \) denotes the event that the same number shows on each die and \( B \) denotes the event that the sum of the numbers on both dice is greater than 7, then \( P(A \mid B) \) and \( P(B \mid A) \) respectively are:

The circumcentre of the triangle with vertices \( (-2,3), (2,-1), (4,0) \) is:

The value of the constant \( c \), so that \( P(x) = c\left(\dfrac{2}{3}\right)^x,\, x = 1,2,3,\ldots \) is the probability distribution function of a discrete random variable \( X \), is:

Let \(A\) and \(B\) be two independent events of a random experiment. If the probability that both \(A\) and \(B\) occur is \(\frac{1}{6}\) and the probability that neither of them occurs is \(\frac{1}{3}\), then the probability of occurrence of \(A\) is:

Let \[ \vec{a} = 2\hat{i} + \hat{j} - \hat{k} \quad \text{and} \quad \vec{b} = \hat{i} + 3\hat{j} - 5\hat{k} \] be two vectors, and \(\vec{r}\) be a vector along the vector \(3\vec{a} - 2\vec{b}\) such that \(|\vec{r}| = \sqrt{74}\). If the direction of \(\vec{r}\) is opposite to that of \(3\vec{a} - 2\vec{b}\), then \(\vec{r} =\)

If \(\vec{r}\) is the position vector of the centroid \(G\) of triangle \(ABC\) and \[ 2\hat{i} + \hat{j} - \hat{k} \quad \text{and} \quad 2\hat{i} + 4\hat{j} - 4\hat{k} \] are respectively the position vectors of its vertices \(A\) and \(B\), then \[ AG^2 + BG^2 + CG^2 =\ ? \]

If \(x_1, x_2, \ldots, x_n\) are 'n' observations and \(\bar{x}\) is their mean. If \[ \sum_{i=1}^{n}(x_i - \bar{x})^2 \text{ is almost zero, then a true statement among the following is} \]

If \[ \vec{a} = -2\hat{i} + 9\hat{j} - 6\hat{k}, \quad \vec{b} = t\hat{i} - 2\hat{j} + 6\hat{k} \] are vectors such that \(|\vec{a} + \vec{b}| = 25\), then the sum of the values of \(t =\ ?\)

If \[ \vec{a} = \hat{i} + 3\hat{j} + 13\hat{k}, \quad \vec{b} = 2\hat{i} - 4\hat{j} + 3\hat{k} \] are two vectors, then the component vector of \(\vec{a}\) perpendicular to \(\vec{b}\) is