Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Use the Pythagorean identity:
Simplify
Expand
Apply the distributive law:
Apply minus-plus rules
Simplify
Apply exponent rule:
Add the numbers:
Multiply:
Add similar elements:
Manipulating right side
Use the negative angle identity:
We showed that the two sides could take the same form
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Frequently Asked Questions (FAQ)
Is tan^3(x)-tan(x)sec^2(x)=tan(-x) ?
The answer to whether tan^3(x)-tan(x)sec^2(x)=tan(-x) is True