# Trigonometry

You will be able to:

• calculate the trigonometric ratios for a given right-angle triangle ($\sin, \cos, \tan, \csc, \sec, \cot$)
• solve for an angle using inverse trigonometric functions
• solve oblique triangles using Sine Law and Cosine Law
• know the trigonometric ratios for a $30-60-90$ degree triangle and a $45-45-90$ degree triangle
• be able to determine other angles with the same $\cos$-value, $\sin$-value, and $\tan$-value as a given angle (use the CAST rule or the unit circle)