chloernl7356 chloernl7356 27-02-2024 Mathematics contestada The derivative of ( ddx( √1 - cosx21 - cosx2 ) ), ( x ∈ ( π2,π ) ) is equal toa. ( 12√1 - cosx2 ) b. ( -12√1 - cosx2 ) c. ( 12(1 - cosx2)√1 - cosx2 ) d. ( -12(1 - cosx2)√1 - cosx2 )