Let A=[55αα0α5α005]I f˙∣∣A2∣∣=25,then ∣α∣equals
Determine whether the product of the matrices is defined in each case. If so, state the order of the product. AB, where A=[aij]4×3,B=[bij]3×2
Find the vector equation of the plane passing through points 4i−3j−k,3i+7j−10k and 2i+5j−7k and show that the point i+2j−3k lies in the plane.