running late pls help

What is the syntax for multiplying inverse of matrix A with matrix B? A/B B/A A\B A./B What is the syntax for creating a row vector B, with elements from 5 to 5 with step size of 2 ? linspace (5,2,5) 5:2:5 5:5 linspace (5,5,2) What is the syntax for creating a row vector A, from - 5 to 70 with 100 elements in it? 5:100:705:70:100 linspace (5,70,100) linspace (5,100,70) What is the syntax for accessing the submatrix containing 2 nd to 3 rd row and 1 st to 2 nd column from matrix A. where,A=147258369? A(2,3) A(1:2,2;3) A(2:3,2) A(2:3,1:2)