Solution
prove
Solution
Solution steps
Manipulating right side
Rewrite using trig identities
Use the Double Angle identity:
Express with sin, cos
Use the basic trigonometric identity:
Simplify
Multiply fractions:
Multiply:
Use the basic trigonometric identity:
We showed that the two sides could take the same form
Popular Examples
prove-sec(2x)=(1+cot^2(x))/(1-cot^2(x))prove prove tan^3(x)-tan(x)sec^2(x)=tan(-x)prove prove sec(pi-x)=-sec(x)prove prove sin(-x)-cos(-x)=-(sin(x)+cos(x))prove prove (csc^2(θ)-1)/(cos(θ))=cot(θ)csc(θ)prove
Frequently Asked Questions (FAQ)
Is tan(2t)=2sin(t)cos(t)sec(2t) ?
The answer to whether tan(2t)=2sin(t)cos(t)sec(2t) is True