Solution

Solution

+1
Decimal Notation
Solution steps
Use the following property:
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

sinh(3)tan(-(7pi)/6)arccos(8/10)tan(arcsin(2/3))3cos(pi/3)

Frequently Asked Questions (FAQ)

  • What is the value of cos(-300) ?

    The value of cos(-300) is 1/2