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

User Demetris Leptos
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1 Answer

3 votes

Answer:

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

i have also attached a simpler way for u to understand

(2cosx+1)(2cosx-1)(2cos2x-1)=2cos4x+1​-example-1
(2cosx+1)(2cosx-1)(2cos2x-1)=2cos4x+1​-example-2
User Alaa Eldin
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7.1k points
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