Solution

Solution

+1
Decimal Notation
Solution steps
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

arctan(5/2)*(180)/picos(3x)= 1/2tan(3)2cos(2x)+1=02sin^2(x)+sin(x)=1

Frequently Asked Questions (FAQ)

  • What is the value of cos(225) ?

    The value of cos(225) is -(sqrt(2))/2