CSC 161 Fall 2019 - Homework 8 (10 pts. total)
Assigned Wed Nov 20, due Mon Nov 25
Answer the following questions in a single Excel file (with multiple sheets/tabs) named hw8-LastName.xls (where LastName is replaced by
your last name):
1. [ 1 pt. ] Use the Excel function PI() to find PI to 5 decimal places.
2. [3 pts.] For the function f(x) = sin x:
a) Set up a table of values with 2 columns: x & f(x). For the x-values, use 0, 30π/180, 60π/180, ..., 330π/180, 2π. For the f(x) values, make sure they are accurate to 8 decimal places.
b) Graph y = sin x on [0, 2π].
3. [3 pts.] Make a table & graph for g(x) = (sin x)/x, at x = -1, -0.1, -0.01, 0, 0.01, 0.1, 1. Does the limit of g(x) as x-->0 exist? Explain why or why not based on your table.
4. [3 pts.] Using the method on pg.65 of the Excel Math Guide, find the derivative of f(x) = |x - 2| at x = 3.
Last Modified: 11/20/19