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Write sin (4theta) in terms of sin (2theta) and cos (2theta).

User Abraham P
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1 Answer

14 votes

Answer:

2 sin 2 theta cos 2 theta

Explanation:

Mathematically;

sin (4theta) = sin (2theta + 2theta)

Using the sine addition rule

That would be;

sin 2 theta cos 2 theta + sin 2 theta cos 2 theta

= 2 sin 2 theta cos 2 theta

User UJIN
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