Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite as
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 cos(2a+a)=-3cos(a)+4cos^3(a) ?
The answer to whether cos(2a+a)=-3cos(a)+4cos^3(a) is True