Sin cos tan

• (sin^2)x + (cos^2)x = 1
• cosx = sin(90-x)
• sinx = cos(90-x)
• tanx = sinx/ cosx
• a^2 = b^2 + c^2 - 2bc cosA
• CosA = (b^2 + c^2 - a^2)/2bc
• Area = 1/2 ab sinC
• SinØ = o/h

  cosØ = a/h

  tanØ = o/a