Solution

prove

Solution

Solution steps
Manipulating right side
Rewrite using trig identities
We showed that the two sides could take the same form

Popular Examples

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Frequently Asked Questions (FAQ)

  • Is 8cos^4(x)-8cos^2(x)+1=cos(4x) ?

    The answer to whether 8cos^4(x)-8cos^2(x)+1=cos(4x) is True