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)

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation:

a

step-by-step explanation:

strong negative correlation