Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions
u can ask this question from kopal,fantas,paras etc. every body will help u.
because there is no sign in in angles


Sin(Ф)=opposite side/hypotenuse                  cos(Ф)= adjacent side/hypotenuse
        =+y/l                                                           =+x/l
sin(-Ф)=-y/l                                                  cos(-Ф)=+x/l

x,y,l⇒ are angles
Ф ⇒ is angle
1 5 1
If you like it vote it as best answer...
If dont understand ask and I'll explain
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts