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 product of all the values of \(\bigl(\sqrt{3} - i\bigr)^{25}\) is ?
The number of common roots among the 12th and 30th roots of unity is ?
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:
If the function \( f(x) = x^3 + ax^2 + bx + 40 \) satisfies the conditions of Rolle's theorem on the interval \( [-5, 4] \) and \( -5, 4 \) are two roots of the equation \( f(x) = 0 \), then one of the values of \( c \) as stated in that theorem is: