Solution

Solution

+1
Decimal
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

9*sin(75)25sin(2pi*15)+10015sin(2pi*15)+90tan(12/15)arctanh(0.8)

Frequently Asked Questions (FAQ)

  • What is the value of cos(2025) ?

    The value of cos(2025) is -(sqrt(2))/2