Solution
prove
Solution
Solution steps
Manipulating right side
Rewrite using trig identities
Use the Product to Sum identity:
Simplify
Multiply fractions:
Cancel the common factor:
Refine
We showed that the two sides could take the same form
Popular Examples
prove tan(x)+cot(2x)=csc(2x)prove prove tan(θ)sin(θ)=sec(θ)-cos(θ)prove prove (sec(θ))/(tan(θ))=csc(θ)prove prove cot(2b)=(cot^2(b)-1)/(2cot(b))prove prove 1+tan^2(a)=sec^2(a)prove
Frequently Asked Questions (FAQ)
Is cos(a-b)-cos(a+b)=2sin(a)sin(b) ?
The answer to whether cos(a-b)-cos(a+b)=2sin(a)sin(b) is True