Mathematics, 27.07.2019 20:50, birdwithpurpleboots
Which expression is equivalent to (sin x + 1)(sin x − 1)? a. cos2x b. -cos2x c. cos2x + 1 d. cos2x − 1 e. -cos2x + 1
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Mathematics, 28.07.2019 06:00, burnsmykala23
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Mathematics, 28.07.2019 06:00, laiba012305
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Mathematics, 03.08.2019 13:00, ratpizza
Answers: 1
Which expression is equivalent to (sin x + 1)(sin x − 1)? a. cos2x b. -cos2x c. cos2x + 1 d. cos...
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