Mathematics
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)

answer
Answers: 1

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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....

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