March 27, 2017

Post a New Question

Posted by on .

cos2(120degrees) help me solve this please

  • trig - ,

    Is that supposed to be cos^2(120) of cos(2*120) ?

    The cosine of 120 is -cos 60 = -1/2.
    That may help.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question