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Mathematics, 10.06.2021 20:30 maisieisdabomb23

(40 points) Which of the following are trigonometric identities?
Choose all correct answers.

sec²x - tan²x = 1
tan²x - sec²x = 1
sin²x + cos²x = 1
sec²x + csc²x = 1

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(40 points) Which of the following are trigonometric identities?
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