![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 03.11.2020 18:40, natebarr17
Read the proof.
What is step 2?
1. sin(2x) = cos(x)cos(x) – sin(x)sin(x)
2. sin(2x) = sin(x)cos(x) – sin(x)cos(x)
3. sin(2x) = cos(x)cos(x) + sin(x)sin(x)
4. sin(2x) = sin(x)cos(x) + sin(x)cos(x)
1. sin(2x) = sin(x + x)
2. ?
3. sin(2x) = 2sin(x)cos(x)
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Do you know the correct answer?
Read the proof.
What is step 2?
1. sin(2x) = cos(x)cos(x) – sin(x)sin(x)
2....
1. sin(2x) = cos(x)cos(x) – sin(x)sin(x)
2....
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