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AP EAPCET
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Mathematics
List of top Mathematics Questions asked in AP EAPCET
If \( \alpha = \log_e(2 + \sqrt{3}) \), then evaluate:
\[ \frac{\cosh \alpha }{1 - \tanh \alpha} + \frac{\sinh \alpha}{1 - \coth \alpha} \]
AP EAPCET - 2023
AP EAPCET
Mathematics
Hyperbolic Functions
If \( \sec(\theta + \alpha) \), \( \sec(\theta) \), and \( \sec(\theta - \alpha) \) are in arithmetic progression, then \( \sin^2 \theta = \)
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Identities
Evaluate the following expression:
\[ \sin 21^\circ \cos 9^\circ - \cos 84^\circ \cos 6^\circ \]
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometry
If the values of \( k \) for which the equation \( x^2 + 2(k+2)x + 6k + 7 = 0 \) has equal roots are \( k_1 \) and \( k_2 \), then \( k_1^2 + k_2^2 \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Quadratic Equations
The number of all possible solutions of the equation \( z^3 + z = 0 \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( (3 + 2\sqrt{2})^{x^2 - 4} + (3 - 2\sqrt{2})^{x^2 - 4} = 6 \), then \( x^4 + x^2 + 5 = \)?
AP EAPCET - 2023
AP EAPCET
Mathematics
Differential Equations
If \( z_1 = (2, -1) \) and \( z_2 = (6, 3) \), then find the amplitude of the expression
\[ \text{amp}\left(\frac{z_1 - z_2}{z_1 + z_2}\right) \]
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( A = \begin{bmatrix} i & 0 \\ 0 & -i \end{bmatrix}, B = \begin{bmatrix} 0 & -1 \\ 1 & 0 \end{bmatrix}, C = \begin{bmatrix} 0 & i \\ -i & 0 \end{bmatrix} \), then the expression \( A^2 + B^2 + C^2 \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Matrices
If \( f(x) = x^3 - x \) and \( g(x) = \sin(2x) \), then \( f(g\left(\frac{\pi}{12}\right)) \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Functions
If the solution for the system of equations \[ x + 2y - z = 3, \ 3x - y + 2z = 1, \ 2x - 2y + 3z = 2 \] is \( ( \alpha, \beta, \gamma ) \), then find the value of \( \alpha^2 + \beta^2 + \gamma^2 \).
AP EAPCET - 2023
AP EAPCET
Mathematics
Linear Equations
If \( f(x) \) is the signum function, then in terms of \( f(x) \), the constant function \( g(x)=1, \ \forall x \in \mathbb{R} \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Functions
If
\[ \begin{vmatrix} x & 4 & -1 \\ 2 & 1 & 0 \\ 0 & 2 & 4 \end{vmatrix} = 0, \text{ then find the value of } x. \]
AP EAPCET - 2023
AP EAPCET
Mathematics
Determinants
For real numbers \( a \) and \( b \), if
\[ 4a + i(3a - b) = b - 6i \] and \[ z = a + \frac{b}{4}i, \] then find \[ \frac{|z|}{a}. \]
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( z = (1 - i^3)(x + i) \) is a purely imaginary number for \( x = x_1 \), and if \( z \) is a purely real number for \( x = x_2 \), then find \( x_1, x_2 \).
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( \omega, \omega^2 \) are the cube roots of unity, \( k \) is a positive integer, and \[ (1 - \omega^2)^{3k} + (1 - \omega^2 + 0)^{3k+1} + (1 + \omega - 0)^{3k+1}, \] then find \( k \).
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( \alpha, \beta \) are the two real roots of the 4th roots of unity, and \( \gamma, \delta \) are the other two roots of it, then the sum of the eccentricities of the conics \( |z - \alpha| + |z - \beta| = 4 \) and \( |z - \gamma| + |z - \delta| = 6 \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Complex numbers
If \( \frac{17x - 2}{12x^2 - x - 20} = \frac{A}{ax + 5} + \frac{B}{3x + b} \), then \( a \cdot A + b \cdot B \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Partial Fractions
Let \( \vec{a}, \vec{b}, \vec{c} \) be any three non-coplanar vectors. If \( m, n \) are scalars such that \( \vec{a} + \vec{b} = m\vec{c} \) and \( \vec{b} + \vec{c} = n\vec{a} \), then \( 3\vec{a} + 2\vec{b} + 2\vec{c} = \):
AP EAPCET - 2023
AP EAPCET
Mathematics
Vector Algebra
In \( \Delta ABC \), \( A, B, C \) are in arithmetic progression and \( a : c = 1 : 2 \). If \( b = 4\sqrt{3} \) cm, then the area of \( \Delta ABC \) (in sq. cm) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Functions
If \( \sinh x = \frac{5}{12} \), then \( \cosh \frac{x}{2} \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Hyperbolic Functions
If \( \alpha, \beta \) are acute angles such that \( \sin \beta = 2 \sin \alpha \) and \( 3 \cos \beta = 2 \cos \alpha \), then \( \sec (\alpha + \beta) \) is:
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Functions
In \( \Delta ABC \), \( \left( \tan \frac{A}{2} + \tan \frac{B}{2} \right) \tan \frac{C}{2} = \):
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Functions
Match the ranges of the functions given in List - A with those of the items given in List - B.
AP EAPCET - 2023
AP EAPCET
Mathematics
Functions
If \( \frac{\tan A}{1 - \cot A} + \frac{\cot A}{1 - \tan A} = \):
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Functions
Find the value of \( \cos 12^\circ \cdot \cos 24^\circ \cdot \cos 36^\circ \cdot \cos 48^\circ \cdot \cos 72^\circ \cdot \cos 84^\circ \):
AP EAPCET - 2023
AP EAPCET
Mathematics
Trigonometric Identities
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