Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point

Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Proof of cos(A-B)=cosAcosB+sinAsinB Sum & Difference Identities for Power Point
Grade Levels
Product Rating
File Type

Compressed Zip File

Be sure that you have an application to open this file type before downloading and/or purchasing.

5 MB|33 pages
Share
Product Description
Included in this zip folder are 4 Power Point files. 1 is the proof, 1 is an assignment and 2 are student 1 page printables. A brief description of each:

The proof is a 32 slide file. The identity cos(A-B)=cosAcosB+sinAsinB is proved. The distance formula is used to derive this identity based on a rotated angle in the unit circle. The student must previously know:
1. The definition of sine
2. The definition of cosine
3. The Pythagorean Identities
4. Expand a binomial
The 1st 11 slides are free in the preview section.

Printable #1 is 1 page. This is for the proof. The appropriate pictures are included for the student to follow along and formulate the proof.

Printable #2 is a 1 page reference of trig identities. The following identities are on the reference:
1. Odd/Even Identities
2. Cofunction Identities
3. Sum and Difference Identities
4. Half Angle Identities
5. Pythagorean Identities
6. Double Angle Identities

Assignment #1 is a 15 question multiple choice assignment. The student must recognize the sum and difference identities for sine, cosine and tangent. It is on 1 page for easy printing. If you desire, it can be used at socrative.com and the socrative share number is included in the file.

Thank you for looking
Total Pages
33 pages
Answer Key
Included
Teaching Duration
1 hour
Report this Resource
Loading...
$1.25
Digital Download
avatar

Tom Wingo

62 Followers
Follow
More products from Tom Wingo
Product Thumbnail
$0.00
Product Thumbnail
$0.00
Product Thumbnail
$0.00
Product Thumbnail
$0.00
Product Thumbnail
$0.00
$1.25
Digital Download
Teachers Pay Teachers

Teachers Pay Teachers is an online marketplace where teachers buy and sell original educational materials.

Learn More

Keep in Touch!

Sign up