Solution

Solution

+1
Decimal Notation
Solution steps
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

arctan(12/9)csc(-2pi)-sin((2pi)/3)csc(-180)2sin(90)

Frequently Asked Questions (FAQ)

  • What is the value of cos(570) ?

    The value of cos(570) is -(sqrt(3))/2