Trigonometric Identities: 3/24

We spent the first half of class working on our projects. The rough drafts are due today!
Then we did the warm up.

Solve graphically/numerically:






The graphs were the same, so this equation is actually an identity.






Making a proof for this identity:




= Left hand side


= Right hand side



More on Identities
on page 374 has list of fundamental trigonometric identities (this will be your Rosetta Stone):

• Reciprocal
• Quotient
• Pythagorean
• Cofunction
• Even/Odd

Homework:
page 379: 9-65 (by 4's), 77, 93

Kayla will be next scribe!