Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! ðŸ™‚ https://www.patreon.com/patrickjmt !! Problems with Detailed Solutions related to Critical Numbers made by me:

http://www.teacherspayteachers.com/Product/Critical-Numbers-First-and-Second-Derivatives

Finding Critical Numbers – Example 2.

Another example of finding critical numbers.

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Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) a=4i-3j+k and b=2i-k Leave a tip for good service: https://paypal.me/jjthetutor Student Solution Manuals: https://amzn.to/2WZrFnD More help via http://jjthetutor.com Download my eBooks via http://payhip.com/jjthetutor, paperback via http://amazon.com/author/jjthetutor.

College Algebra Sections 1.4, 1.5 and 1.6: Rational and Radical expressions, linear inequalities and equations with absolute value