Post a New Question

pre calc

posted by .

If tan theta=-3/4 and 90°<theta<180° Then find cos theta

  • pre calc -

    So you are told that Ø is in quadrant II, and it looks like you are dealing with the 3-4-5 right-angled triangle
    so y = 3, x = -4, r = 5
    cosØ = -4/5

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question