Solution
prove
Solution
Solution steps
Manipulating left side
Use the negative angle identity:
Simplify
Rewrite using trig identities
Use the Pythagorean identity:
We showed that the two sides could take the same form
Popular Examples
prove (1+csc(β))/(cot(β)+cos(β))=sec(β)prove (1-cos(b))(1+cos(b))= 1/(csc^2(b))prove tan(-sqrt(7))=tan(pi-sqrt(7))prove 25sec^2(5x)=25+25tan^2(5x)prove (sin(x)cos(x))/(1-cos^2(x))=cot(x)
Frequently Asked Questions (FAQ)
Is tan^2(-θ)+1=sec^2(θ) ?
The answer to whether tan^2(-θ)+1=sec^2(θ) is True