If \( x \) and \( y \) are two positive real numbers such that \( x + iy = \frac{13\sqrt{5} + 12i}{(2 - 3i)(3 + 2i)} \), then \( 13y - 26x = \):
Matrix Inverse Sum Calculation
Given the matrix:
A = | 1 2 2 | | 3 2 3 | | 1 1 2 |
The inverse matrix is represented as:
A-1 = | a11 a12 a13 | | a21 a22 a23 | | a31 a32 a33 |
The sum of all elements in A-1 is:
Solving the System of Linear Equations
If (x,y,z) = (α,β,γ) is the unique solution of the system of simultaneous linear equations:
3x - 4y + 2z + 7 = 0, 2x + 3y - z = 10, x - 2y - 3z = 3,
then α = ?
The number of common roots among the 12th and 30th roots of unity is ?
The product of all the values of \(\bigl(\sqrt{3} - i\bigr)^{25}\) is ?
The maximum value of the function \[ f(x) = 3\sin^{12}x + 4\cos^{16}x \] is ?