Recent content by Sync

  1. S

    How Can I Solve tan(a)=-1 for Multiple Solutions?

    It's pretty easy tan(-a)= -tan a So, Tan(-45) = -1 Now tan is negative in the 2nd and 4rth quadrant. So tan(180-45)= -1, tan(360-45)=-1,tan(540-45)=-1 It has Infinite solutions. Could be a=135,315 etc.
  2. S

    Electric Potential and charge flowing between 2 spheres

    Answer is B-A.End of Story.
  3. S

    Electric Potential and charge flowing between 2 spheres

    I'll agree with Luke.Current will flow from A to B but the Negative charge will flow from B-A as negative charges move from lower potential to Higher potential. For example.Think of a Circuit normally the current flows from higher potential to lower potential (Positive Terminal to Negative...
  4. S

    Other Khan Academy vs. Textbooks: Which is Better for Pre-University Math Review?

    Cosign. KA is not enough tbh.