If \((4 , 3 , 2)\begin{pmatrix} 1 \\ -2 \\ x \end{pmatrix} = (6)\) then \(x\) is
The obtuse angle between lines \(2y = x + 1\) and \(y = 3x + 2\) is:
What is the general solution of the equation \( \cot\theta + \tan\theta = 2 \)?