karkirita669 karkirita669

31-08-2019
Mathematics

contestada

(2cosx+1)(2cosx-1)(2cos2x-1)=2cos4x+1

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kosala1478 kosala1478

31-08-2019

Answer:

see the answer and it's steps in the attached pic:-)

i have also attached a simpler way for u to understand

Ver imagen kosala1478

Ver imagen kosala1478

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