Exercise #2: Write a C++ program called vec.cpp which will read in the components of two three dimensional vectors v and w, then compute their cross product y = v × w, and finally compute and output to the screen the following quantities: w · v, v xw, v-y, and y x v. HINTS: As in Matlab, vectors are represented using arrays. However, unlike Matlab, C++ knows nothing about the mathematical nature of vector arrays, hence has no built-in functions for dot and cross products. You will need to compute these quantities directly from their definitions (look 'em up if you've forgotten!) An example run of your program should look like: Enter v: 1 2 3 Enter w: -1 0 1 dot (w,v) = 2 VXW = 2 -4 2 = 0 dot (v,y) yxv=-16 -4 8

You can Use C++ programming, Windows Programming, Java, or Ptyhon to solve it The following table contains quarterly sales figures for five (5) departments:   Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Department 1 750 660 910 800   Department 2 800 700 950 900   Department 3 700 600 750 600   Department 4 850 800 1000 950   Department 5 900 800 960 980   Total           Design and write a Windows program/module named SalesAnalysis that will: Declare a two-dimensional integer array named sales – (Note: you have 6 rows and 5 columns) - that will hold the 4 quarterly sales for 5 departments Populate the first four columns for the 5 departments using the data in the preceding table. Contain a loop to compute and populate the total column. Store each department’s total in the array as it is being computed. Contain a loop to compute and populate the total row. Store each quarter’s total in the array as it is…

3. Write a program to obtain inverse matrix by entering a 3*3 matrix from the user.(using visual studio) output screen Enter the first line : 00 00 00 Enter the secon line : 00 00 00 Enter the third line : 00 00 00 entered matrix 00 00 00 00 00 00 00 00 00 inverse matrix is 00 00 00 00 00 00 00 00 00

Write a function which will find the average of all elements of an array of integers. Pass an array anda dimension (the number of elements), and return the value of the average as a float ( the return value).Test this function in the main program with the array: 5, 7, 3, 5, 6, 4. c++