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We’ll have our first midterm this coming Monday (March 11).
I’ll fill in this matrix of review exercises over the next couple days, so keep an eye on this post:
Sec #: Examples / Practice Problems / Exercises:
1.1: 3 / 2-4 / 17, 19, 21, 27,
1.2: 1-5 / 1-2 / 3, 7-19 odd, 23-29 odd
1.3: 1-6 / 1-2 / 5, 9, 11-21 odd, 25
1.4: 1-5 / 1-2 / 5-21 odd, 25, 26,
1.5: 1-3 / 1-2 / 5-13 odd, 14, 17, 33, 35
1.7: 1-6 / 1-4 / 1-13 odd, 31
That’s a lot of exercises, but you should have already attempted them all as part of the HW sets. Also we’ve gone through a fair number of these in class.
I suggest you tackle a couple sections per day–read thru the examples, try Practice Problems, and then work through the exercises.
I’ll try to write up solutions for a couple exercises in each section and post here over the weekend.
can you write the solution to questions 4 and 5 in section 1.1 .
Do you mean the problems on p10, asking you to #4: find the point of interesection of the two given lines and #5: describe in words the next couple row operations? The solution for #5 is in the back of the book. For #4, just set up the augmented matrix for the system of two equations and solve.
I am attaching solutions for #19 in Sec 1.1 and #19 in Sec 1.2
ok thank you
For 1.1.4, you should be able to row reduce to the following row reduced echelon form:
[ 1 0 -3
0 1 -5 ]
which gives you the answer
A few exercises from Sec 1.3
A couple more solutions, for Sec 1.4 exercises
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