Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Use the Pythagorean identity:
Simplify
Distribute parentheses
Apply minus-plus rules
Simplify
Group like terms
Add/Subtract the numbers:
We showed that the two sides could take the same form

Popular Examples

prove (cot(x)+tan(x))^2=csc^2(x)sec^2(x)prove cos(3x)=4cos(3x)-3cos(x)prove sec^2(a)+csc^2(a)=sec^2(a)csc^2(a)prove (2sin(x)+cos(x))^2+(2cos(x)-sin(x))^2=5prove cos(a)(sec(a)-cos(a))=sin^2(a)

Frequently Asked Questions (FAQ)

  • Is 3-sec^2(x)=2-tan^2(x) ?

    The answer to whether 3-sec^2(x)=2-tan^2(x) is True