Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Rewrite using trig identities
Add similar elements:
We showed that the two sides could take the same form

Popular Examples

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Frequently Asked Questions (FAQ)

  • Is cos(pi+x)+cos(2pi-x)=0 ?

    The answer to whether cos(pi+x)+cos(2pi-x)=0 is True