• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/17

Click to flip

### 17 Cards in this Set

• Front
• Back
 secO 1/cos0 cscO 1/sinO cotO 1/tanO tanO sinO/cosO cotO 1/tanO sin(-x) -sinx cos(-x) cosx tan(-x) -tanx Three Pythagorean Identities cos2O+sin2O=1 1+tan2O=sec2O cot2O+1=csc2O Cofunciton Identities 1. sin(pi/2 - u) = cosu cos(pi/2 - u) =sinu 2. sec (pi/2-u) = cscu csc (pi/2 -u) = secu 3. tan(pi/2 -u) =cotu cot(pi/2 -u) =tanu Addition and Subtraction Identities six long equations sin(s+t)= sin s cos t + sin t cos s sin(s-t)= sin s cos t - sin t cos s cos(s+t)= cos s x cos t - sin s sin t cos(s-t) cos s cos t + sin s sin t tan(s+t)= tan s + tan t __________ 1 - tan s tan t tan(s-t)= tan s - tan t ____________ 1 + tan s tan t