7. Use loops to create a 3 x 5 matrix in which the value of each element is its row number to the power of its column number divided by the sum of its row number and column number. For example, the value of element (2,3) is 23/(2+3)= 1.6. 8. Given: v= [4-1231-250] and u =[5-103-3215]. Evaluate the following expressions without using MATLAB. Check the answers with MATLAB. (a)~~u (b) v==~u (c) u == abs(v) (d) v=u+v 9. Evaluate the following expressions without using MATLAB. Check the answers with MATLAB. (a) 12-4<5X3 (b) y=8/4>6X3-42>-3 (c) y=-3<(8-12)+2X (5> 18/6-4)2 (d) (~5+~0) X6=3+3X-0