Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
Rewrite as
Use the Angle Sum identity:
Simplify
Add similar elements:
We showed that the two sides could take the same form

Popular Examples

prove sin(2α)=(2tan(α))/(1+tan^2(α))prove cot(x)sec(x)csc^2(x)-cot^3(x)sec(x)=csc(x)prove csc(t)-sin(t)=cot(t)cos(t)prove cos(60)=2cos^2(30)-1prove (sin(t)+cos(t))^2=1+sin(2t)

Frequently Asked Questions (FAQ)

  • Is sin(2a)=2cos(a)sin(a) ?

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