Answer:
30
Step-by-step explanation:
Use the the double angle formula:
sin(2A)=2sin(A)cos(A)
substitute 2x for A, then
20sin(2x)cos(2x)=10(sin(2(2x))cos(2(2x))=10sin(4x)
Answer: I wish I can help you, But I can't
Step-by-step explanation: lll
Answer:
72
Step-by-step explanation:
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