Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Use the Pythagorean identity:
Simplify
Expand
Apply the distributive law:
Simplify
Multiply:
Apply exponent rule:
Add the numbers:
Add similar elements:
We showed that the two sides could take the same form
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Frequently Asked Questions (FAQ)
Is cos^2(x)sin^2(x)+cos^4(x)=cos^2(x) ?
The answer to whether cos^2(x)sin^2(x)+cos^4(x)=cos^2(x) is True