Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Use the Angle Difference identity:
Simplify
Simplify
Use the following trivial identity:
periodicity table with cycle:
Apply rule
Simplify
Use the following trivial identity:
periodicity table with cycle:
Multiply:
We showed that the two sides could take the same form

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is cos(x-90)=sin(x) ?

    The answer to whether cos(x-90)=sin(x) is True