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2sec^x-2sec^2x sin^2x

i've done problems like this before, but i was always able to change a term to cancel out something

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)
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2sec^x-2sec^2x sin^2x
= 2sec^x(1-sin^2x)
= 2sec^x cos^2x
= 2 <==Answer