07-05-2018
Mathematics

contestada

simplify cos x + cos x tan^2 x

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MANNYCARRILLO6 MANNYCARRILLO6

07-05-2018

cosx(1+tan^2(x))

using identity attached

cosx(sec^2(x))

cosx(1/cos^2(x))

=1/cosx
=secx

hope that helps

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