Given: Cosine (x minus y)
1. = sine (pi/2 - (x minus y))
2. = sine (pi/2 - x + y)
3. =...
Mathematics, 08.12.2020 19:20, micahsocool23
Given: Cosine (x minus y)
1. = sine (pi/2 - (x minus y))
2. = sine (pi/2 - x + y)
3. = sine ((pi/2 - x) + y )
4. = sine ((pi/2 - x) - (-y))
5. = sine (pi/x - x) cosine (-y) - cosine (pi/2 - x) sine (-y)
6. = cosine (x) cosine (-y) - sine (x) sine (-y)
7. = cosine (X) cosine (y) + sine (x) sine (y)
Choose a justification for each step in the derivation of the sine difference identity.
Step 1:
Step 2: Distributive property
Step 3: Associative property
Step 4: Factoring out β1
Step 5:
Step 6:
Step 7:
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