trigonometry-lesson-5-trigonometry-review

Download the note taking guide here!

Video Guide

0:30 Explantaion of the trig ratios

2:42 Learning how to use the trig functions

Reviewing the steps

1. Find the reference angle.

2. Label OPPOSITE, ADJACENT, HYPOTENUSE

3. Which two do you have? Which function is it?

4. Set up the ratio

5. Solve it!

5:11 Practice problem 1 Deciding the functions

6:30 Practice 2 Find opposite side using tangent

7:45 Practice problem 3 using cosine

9:53 Solving Tan 52/1 = x/12

12:33 Solving Sin48/1=x/17

13:39 Solving Tan72/1 = x/34

15:03 Solving cosine 25/1 = 7/x

17:22 Reviewing using trig functions

1. Set up the ratio:

2. Cross multiply. Use your calculator by entering:

TRIG FUNCTION ANGLE ENTER

3. Solve.

If you need help in trigonometry I have put together a trigonometry unit. This is one video of the trigonometric unit that contains 14 videos, along with a note taking guide for each video, Click here for the table of contents:

http://www.moomoomath.com/trigonometry-problems.html

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Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"

https://www.youtube.com/watch?v=f3bsg8gaSbw

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Tagged under: Trig,Trigonometry (Concepts/Theories),trig function,sine cosine tangent

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