Question

definition of sin square
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Answer 1

Answer:

I hope it helps

Step-by-step explanation:

The first shows how we can express sin θ in terms of cos θ; the second shows how we can express cos θ in terms of sin θ. Note: sin2θ -- "sine squared theta" -- means (sin θ)2. ... Note: In the sine formulas, + or − on the left is also + or − on the right.