Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Use the Double Angle identity:
Simplify
We showed that the two sides could take the same form

Popular Examples

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Frequently Asked Questions (FAQ)

  • Is cos^2(3x)-sin^2(3x)=cos(6x) ?

    The answer to whether cos^2(3x)-sin^2(3x)=cos(6x) is True