Solution

Solution

Solution steps
Use the following property:
Rewrite as
Apply the periodicity of :
Rewrite using trig identities:
Write as
Use the Angle Sum identity:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Simplify

Popular Examples

5/(sin(30))arctan((2sqrt(3))/6)10sin(20)2cos^2(75)-1arcsin(sin((7pi)/5))

Frequently Asked Questions (FAQ)

  • What is the value of cos(-630) ?

    The value of cos(-630) is 0