After forward row reduction in Gauss elimination method, if the augmented matrix of given system of three linear equations reduces to following form,…
Class 12 Mathematics · 2083 · Solved Question with Answer
After forward row reduction in Gauss elimination method, if the augmented matrix of given system of three linear equations reduces to following form, then the system of equations has
\( \begin{bmatrix} a_1 & b_1 & c_1 & : & d_1 \\ 0 & b_2 & c_2 & : & d_2 \\ 0 & 0 & 0 & : & 0 \end{bmatrix} \)
A) Unique solutions B) Infinitely many solutions C) No solutions D) Only one solution
OR
In a projectile, initial velocity is \( 40\text{ms}^{-1} \) and angle of projection is \( 30^\circ \), what is its time of flight ?
A) \( \frac{10}{g} \) B) \( \frac{20}{g} \) C) \( \frac{40}{g} \) D) \( \frac{80}{g} \)