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| THE UNIT S WAY ^ |
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| UNIT R WAY^ |
Describe how you know that those answers are the same.
- When looking at how both these problems are solved differently, it seems as though the ending product is not going to equal the same value. After solving for each and simplifying we can see that one of the values from both ways match, that is the value of tangent. The other two trig functions are also proven to equal the same when you plug each into the calculator. When doing so you find that using both ways (sum-difference formula/half-angle formula) end up equalling the same for all trig functions. They end up having the same exact value even though they look different and are solved using different methods.
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