Write one or more commands to evaluate the following mathematical expression and assign the result to the indicated variable name y= cos (35) - sec? (35) tan (70) Assign the result for y to the variable Answer1. Be sure to use a MATLAB command to evaluate each mathematical expression rather than just entering the result calculated elsewhere (e.g. a local MATLAB session or on your calculator)

If you want to get the system date, display it, and then change it, which INT 21h functionsare required?

Using the IDLE development environment, create a Python script named tryme4.py. (Note: an alternative to IDLE is to use a free account on the pythonanywhere website: ) IDLE has both an interactive mode and a script mode. You must use the script mode to develop your script. Your script must use meaningful variable names and have comments that describe what is happening in your script. Comments may describe the assignment of a value to a variable, a computation and the assignment of the result to a variable, or the display of the result. Write a function in this file called nine_lines that uses the function three_lines (provided below) to print a total of nine lines. Now add a function named clear_screen that uses a combination of the functions nine_lines, three_lines, and new_line (provided below) to print a total of twenty-five lines. The last line of your program should call first nine_lines and then the clear_screen function. The  function three_lines and new_line are defined below…

If the sentence is true, write T; if it is wrong, write F; and correct the false sentence. Only five of the following questions must be answered. To add a plot to an existing plot, use the get() command

The following flowchart contains several errors. Correct them and re-draw the correct flowchart and give reason/explanation for each of those errors.

Update the validateForm() function to verify the phone number is exactly 10 characters long. Display "Phone number is invalid" in the console log if the phone number does not meet the requirements. Use the preventDefault() function to avoid submitting the form when the input is invalid.

4. If you create a variable using the following command y=c(-1,2,-3,4,-5,7,-8,9,-10,13), what command would compute the product of the positive values of y and assign it to z?