Solution

Solution

+1
Decimal Notation
Solution steps
Simplify
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

cot(66.5)cos(101)sec(80)arctan(6/12)arctan(-1/7)

Frequently Asked Questions (FAQ)

  • What is the value of cos(240-0) ?

    The value of cos(240-0) is -1/2