Solution

Solution

+1
Solution steps
Rewrite using trig identities:
Use the following trivial identity:
Use the following trivial identity:
Simplify

Popular Examples

cos(2θ)=(sqrt(3))/2prove cos(2x)=cos^2(x)-sin^2(x)prove sin^2(x)+cos(2x)-cos(x)=0arcsin(sin((3pi)/4))prove sin(2θ)=2sin(θ)cos(θ)prove

Frequently Asked Questions (FAQ)

  • What is the value of tan(105) ?

    The value of tan(105) is -2-sqrt(3)