subtraction formula for cosine - noorduyn's math …...compound angles cos(x+ y) = cos x cos y...
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![Page 1: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/1.jpg)
Subtraction Formula for Cosine: Addition Formula for Cosine: Addition a Formula for Sine: Subtraction Formula for Sine:
![Page 2: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/2.jpg)
Ex 1: Find the exact value of sin50°cos20° - cos50°sin20° Ex 2: Calculate sin exactly Ex 3: If the cosa= 2/3, and cos
![Page 3: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/3.jpg)
![Page 4: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/4.jpg)
![Page 5: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/5.jpg)
![Page 6: Subtraction Formula for Cosine - Noorduyn's Math …...Compound Angles cos(x+ y) = cos x cos y — sin x sin y cos(x — y) = cos x cos y + sin x sin y 1. Express each of the following](https://reader030.vdocuments.net/reader030/viewer/2022040604/5ea2e37103efbd3a6f7071a2/html5/thumbnails/6.jpg)