leslie8926 leslie8926 14-03-2024 Mathematics contestada Given f(x) = x² - sec(x) , find f'(x) . a) f'(x) = 2x + sec(x) tan(x) b) f'(x) = 2x - sec(x) tan(x) c) f'(x) = 2x + sec²(x) d) f'(x) = 2x - sec²(x)