Solution

Solution

Solution steps
Rewrite using trig identities:
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
Simplify
Remove parentheses:
Multiply fractions:
Cancel the common factor:

Popular Examples

arcsin(0/2)tan(120+45)sin(60)+cos(30)sin(pi)+cos(pi)500sin(30)

Frequently Asked Questions (FAQ)

  • What is the value of 2cos(240) ?

    The value of 2cos(240) is -1