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L20_blanks - Day 23 Lecture 20 for Verifications Equations...

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1 Day 23 Lecture 20 for 3/31/2011 Verifications & Equations L19 –Don’t Forget the Basics 3. Pythagorean Identities: Cross Over from MAC1140: Combo’s ARE COOL: Slide: 2of 12 is 0
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2 L19 –…It’s really More of a Guideline 1) Start with one Side . Pick the ___________ Looking One. Sometimes you have to break this rule. 2) Use known Identities . Follow Algebra Basics Here, Common Denominators are Common Place , Factoring is Fantastic 3) Convert to Sinesand Cosine. Sometimes its helpful to rewrite all functions in terms of sines and cosines . Sometimes its just ________ work . Slide: 3of 12 is 0 L20 –C O M MO N D E N O M I N A T O R Ex: Verify the trigonometric identity. Slide: 4of 12 is 0
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3 L20 –…Do I know You? Ex: Verify the trigonometric identity. Slide: 5of 12 is 0 L19 –…Don’t Let them Intimidate You. Ex: Verify the trigonometric identity. Slide: 6of 12 is 0
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4 L19 –Sinesand Cosines make Everything Fun! Ex: Verify the trigonometric identity. Slide: 7of 12 is 0 L20 –…Breakin’ the Law, Breakin’ the Law Sometimes, it is practical to work with each side
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