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

sin(arccos(15/17))arctan(11/3)tan(0/2)3sin(-pi/3)sec(-675)

Frequently Asked Questions (FAQ)

  • What is the value of cos(960) ?

    The value of cos(960) is -1/2