Solution

Solution

Solution steps
Use the following trivial identity:
Use the following trivial identity:
Simplify

Popular Examples

sin((3pi)/5)cos(pi/(15))+cos((3pi)/5)sin(pi/(15))arctan(6/(-5))4sec((3pi)/4)cos(pi/8)+sin(pi/8)2(cos(300)+isin(300))

Frequently Asked Questions (FAQ)

  • What is the value of cos(pi)+i*sin(pi) ?

    The value of cos(pi)+i*sin(pi) is -1