Solution

prove

Solution

Solution steps
Manipulating right side
Use the negative angle identity:
Use the negative angle identity:
Simplify
Rewrite using trig identities
Use the Double Angle identity:
Simplify
We showed that the two sides could take the same form

Popular Examples

prove sin(θ)csc(θ)-sin^2(θ)=cos^2(θ)prove cos^2(x)csc(x)sec(x)=cot(x)prove (cos^2(-x)csc(x))/(cot(x))=cos(x)prove cot(2x)=(csc^2(x)-2)/(2cot(x))prove 1/(cos(θ))=(tan(θ))/(sin(θ))

Frequently Asked Questions (FAQ)

  • Is sin(2x)=-2sin(-x)cos(-x) ?

    The answer to whether sin(2x)=-2sin(-x)cos(-x) is True