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2 years ago

14

Verify the identity. sin(3pi - x) = sinx

1 answer:

fgiga [73]2 years ago

7 0

we use the angle- sum and difference trigonometric identity to simplify the expression sin(3pi - x). This is equal to sin 3 pi cos x - cos 3 pi sin x. In this case, sin 3 pi is equal to zero while cos 3 pi is equal to -1. Hence the answer simplified is equal to sin x .

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