heloisbirb9514 heloisbirb9514

08-03-2024
Mathematics

contestada

Which of the following statements are true?
I. sec²x = secx · secx
II. sec²x = sec(x + x)
III. 2secx = secx + secx
IV. sec²x ≠ 2secx
a) II, III, and IV only
b) I only
c) I, II, III only
d) III only

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