Solution
prove
Solution
Solution steps
Show that the two sides are not equal
For plug in
Simplify
Use the following trivial identity:
periodicity table with cycle:
Simplify
Simplify
Use the following trivial identity:
periodicity table with cycle:
Simplify
Add the numbers:
Cancel the common factor:
The two sides are not equal
Popular Examples
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Frequently Asked Questions (FAQ)
Is prove-cos^2(2θ)=(1+cos(4θ))/8 ?
The answer to whether prove-cos^2(2θ)=(1+cos(4θ))/8 is False