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1. True or False. (1 points each) a. All user defined functions must have at least one input and one output variable. b. All.m files containing functions must begin with a function header. 2. Write a MATLAB function called Trigs that: (9 points) • Accepts a single angle or vector of angles in radians as an input argument. • Computes the Sine, Cosine, and Tangent of the input angle(s). Returns all three values/vectors as separate output variables. . 3. Write MATLAB code that calls your function with an angle of your choice as input and saves the result in the variables a (sine), b (cosine), and c (tangent). (4 points) 4. Write MATLAB code that uses the fplot to plot the anonymous function f(x)= x2+5x-3 for an x range of negative thirty to positive thirty. (5 points) Extra Credit (5 points): a) Write a MATLAB function with no inputs or outputs that calculates and displays the average of the data in a global vector called “nums”. (3 points) b) Write MATLAB code to define “nums” with any 5 numbers and then calls your function from part a. (2 points)
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