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

Popular Examples

60cos(40)cos((2pi)/(11))3sec(pi/2)(2(cos(45))^2+3*csc(37))/(2tan(45))(sin(4pi))/3

Frequently Asked Questions (FAQ)

  • What is the value of 10cos(270) ?

    The value of 10cos(270) is 0