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# Unit O Concept 1-3

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Author: Crystal Kirch
##### Description:

Using power-reducing formulas

(more)

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Tutorial

## Unit O Concept 1

Get out your calculator! We are going to be evaluating angles in both degrees and radians on our calculator!

Source: Created by Crystal Kirch using Camtasia for Mac

## Unit O Concept 1 Extra Examples

Didn't get enough? This optional video will go over the remaining examples for you.

Source: Created by Crystal Kirch using Camtasia for Mac

## Unit O Concept 2

This video will help you make the transition between Unit N Concept 9 (using Unit Circle to find angle when given values) and Unit O Concept 2 (using calculator to find angle when given values. We will have to use all of the skills of Unit N (coterminal angles, reference angles, etc), but this time it will be a little trickier because the values will not be very nice numbers to work with...

Source: Created by Crystal Kirch using Camtasia for Mac

## Unit O Concept 2 Extra Examples

Didn't get enough, or simply want to check your answers? This optional video will go over the remaining examples for you.

Source: Created by Crystal Kirch using Camtasia for Mac

## "Call me Maybe"... I mean "Solve me Maybe"

Two things I want you to look and listen for in this video...

1. What is the new vocabulary for the "inverse tan" that they use?
2. When they solved the tangent equation, they said the answer was 45*. What is wrong with that answer and why?

Source: @WSHSmath

## Unit O Concept 3

This very quick overview will show you how to do ONE MORE STEP (add, subtract, multiply, or divide first) and then follow the same procedures as concept 2.

This is the "baby step" concept to actually solving trig equations in our later units.

Source: Created by Crystal Kirch using Camtasia for Mac

## Unit O Concept 3 Extra Examples

Didn't get enough, or simply want to check your answers? This optional video will go over the remaining examples for you.

Source: Created by Crystal Kirch using Camtasia for Mac

## WSQ

If the WSQ does not show up use this link: