100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Honors Precalculus Notes--Chapter 5, Analytic Trigonometry $8.79
Add to cart

Class notes

Honors Precalculus Notes--Chapter 5, Analytic Trigonometry

 10 views  0 purchase
  • Course
  • Precalculus
  • Institution
  • Junior / 11th Grade

Chapter 5 notes for 11th grade Honors Precalculus from an A+ student. Includes definitions on course materials, graphs displaying concepts, numerous example problems including answers, equations, and step-by-step instructions designed to make learning a breeze! Chapter features 2 moduels, includin...

[Show more]

Preview 2 out of 6  pages

  • December 16, 2024
  • 6
  • 2020/2021
  • Class notes
  • Mrs. lucy
  • All classes
  • Junior / 11th grade
  • Precalculus
  • 3
avatar-seller
VictoriaLinn
, 5. 2 Sum and Difference Formulas

The Cosine of the Difference of two Angles


T T
- -
-
-




Example
53
We know that cos 300=-2 .
Obtain this exact value
using cos 300 =
cos ( 900 600 )
-

and the difference formula for cosines .




Costa B )
cosdcosB-isindsin.BR
-
- -




B

900cos 600 900 sin 600
'


l
cos
-

+
sin l



E is
Ez )
'
(
-




)

3=0
=
(O .
z + 1. 3



I
+ 2


53
-

=
2 53
-


3
- E
3


I 1


r
Example us


Find the exact value of cos 700 cos 400-1 sin 705in 400



Costa B ) Costco SB + Sind sin .B
-
- -




cos (700-400) 1300 )
-




cos
-




is
= 2-




Sum and Difference Formulas for Cosine and sines

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller VictoriaLinn. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.79. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

50990 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$8.79
  • (0)
Add to cart
Added