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Simplifying Trig Identities - Sum/Difference

Easy example problems:   Find the exact value of cos 90° Use the unit circle to find the degrees that will either add up to or subtract to 90°. cos(u+v)=cos30°+60°=cos30°cos60°-sin30°sin60°...

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Simplifying Trig Identities - Sum/Difference | abbybrittmath.weebly.com Reviews
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Easy example problems:   Find the exact value of cos 90° Use the unit circle to find the degrees that will either add up to or subtract to 90°. cos(u+v)=cos30°+60°=cos30°cos60°-sin30°sin60°...
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1 simplifying trig identities
2 sum/difference
3 double angle
4 half angle
5 other websites
6 works cited
7 lesson
8 sin u v =sinucosv cosusinv
9 cos u v =cosucosv sinusinv
10 tan u v = tanu tanv / 1 tanutanv
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simplifying trig identities,sum/difference,double angle,half angle,other websites,works cited,lesson,sin u v =sinucosv cosusinv,cos u v =cosucosv sinusinv,tan u v = tanu tanv / 1 tanutanv,easy example problems,use this identity,v=zdtbfvojipa,powered by
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Simplifying Trig Identities - Sum/Difference | abbybrittmath.weebly.com Reviews

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Easy example problems:   Find the exact value of cos 90° Use the unit circle to find the degrees that will either add up to or subtract to 90°. cos(u+v)=cos30°+60°=cos30°cos60°-sin30°sin60°...

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Double angle - Simplifying Trig Identities

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Plug the numbers into an equation and solve. Here is an easier one. Plug this into the equation. There is a 2 taken from the 4 and the -2 which is placed in the front as so. From here, remember to simplify further into. Create a free website. Create your own free website. Start your own free website. A surprisingly easy drag and drop site creator. Learn more. Photo used under Creative Commons from spisharam.

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Works Cited - Simplifying Trig Identities

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Dr Dendane, Abdelkader "Using the trigonometric identities.". Free Mathematics Tutorials,. November 26 2007. http:/ www.analyzemath.com/Trigonometry 2/Use trigo identities.html. Larson, Ron, and Robert P. Hostetler. Precalculus. New York: Houghton Mifflin Company, 2004. Create a free website. Create your own free website. Start your own free website. A surprisingly easy drag and drop site creator. Learn more. Photo used under Creative Commons from spisharam.

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Simplifying Trig Identities - Sum/Difference

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Find the exact value of cos 90°. Use the unit circle to find the degrees that will either add up to or subtract to 90°. Cos(u v)=cos30° 60°=cos30°cos60°-sin30°sin60°. Convert on unit circle- cos=x sin=y. Radic;3/2(1/2) - 1/2 √3/2. This is your simplified answer. How about a harder one? Find the exact value of sine, cosine and tangent of 285°. Using the unit circle see what degrees can add up to or subtract to 285°. Cos(240° 45°)= cos240° cos45° - sin 240° sin45°. 1/2(√2/2) - √3/2(√2/2). With u = 59° ...

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Other websites - Simplifying Trig Identities

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Click here for basics on trig identities- http:/ www.intmath.com/analytic-trigonometry/1-trigonometric-identities.php. Click here for more info and a video on simplifying identities- http:/ www.onlinemathlearning.com/trigonometric-identities.html. Create a free website. Create your own free website. Start your own free website. A surprisingly easy drag and drop site creator. Learn more. Photo used under Creative Commons from spisharam.

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Half angle - Simplifying Trig Identities

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Sin u/2= ±√1-(cos u/2). Cos u/2=±√1 (cos u/2). Tan u/2= 1-(cos u/ sin u) = (sin u/ 1 cos u). Plug in the numbers and then solve. Here is a pretty difficult one. 1Find the exact value of the half angle of sin(π/12). Sin(a/2) = ± √(1-cos/2)/2. Sin a/2= π/12. Sin ( π/6)/2) = √(1-cos π/6)/2. Radic;(2-√3)/4= √(2-√3)/2. Now let's go a step further. 2 Find the cos (t) = -7/9 where π t 3π/2. Divide everything by 2 to get t/2 in the middle. Pi;/2 t/2 3π/4. Create a free website. Create your own free website.

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Simplifying Trig Identities - Sum/Difference

Find the exact value of cos 90°. Use the unit circle to find the degrees that will either add up to or subtract to 90°. Cos(u v)=cos30° 60°=cos30°cos60°-sin30°sin60°. Convert on unit circle- cos=x sin=y. Radic;3/2(1/2) - 1/2 √3/2. This is your simplified answer. How about a harder one? Find the exact value of sine, cosine and tangent of 285°. Using the unit circle see what degrees can add up to or subtract to 285°. Cos(240° 45°)= cos240° cos45° - sin 240° sin45°. 1/2(√2/2) - √3/2(√2/2). With u = 59° ...

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