Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Use the Double Angle identity:
Use the Pythagorean identity:
Expand
We showed that the two sides could take the same form
Popular Examples
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Frequently Asked Questions (FAQ)
Is cos(3θ)=4cos^3(θ)-3cos(θ) ?
The answer to whether cos(3θ)=4cos^3(θ)-3cos(θ) is True