Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Use the Double Angle identity:
Distribute parentheses
Apply minus-plus rules
Simplify
Add similar elements:
Add the numbers:
We showed that the two sides could take the same form

Popular Examples

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Frequently Asked Questions (FAQ)

  • Is 1+cos(2x)+2sin^2(x)=2 ?

    The answer to whether 1+cos(2x)+2sin^2(x)=2 is True