# Trigonometry TI89 App with Step by Step Solutions

## Solve Trigonometry problems stepwise using the TI89 Calculator  Solve any Trigonometry problem instantly. The most comprehensive Trig APP for TI calculators. Ideal for quick review in all classes involving Trigonometry. STEP BY STEP - Solve any 90o and non 90o Triangle. Just enter 2 sides and an angle, 3 sides or 1 side and 2 angles to view each step until the complete triangle is solved. This app is intelligent enough to automatically apply the Law of Sine or the Law of Cosine and other basic Triangle Rules to solve any triangle STEP by STEP. It even notifies if triangle cannot be solved or solutions are ambiguous.  Read the underlying Trig-Theorems and Identities. Graph Trig functions and its Inverses. Evaluate Trig Functions and set up Trig-Models. Master the UnitCircle and its Coordinates.  STEP BY STEP - Compute Sectors and Arcs. STEP BY STEP - Convert Degree to Radian and back. STEP BY STEP - Given Sin Cos or Tan find the remaining ratios in a 90 degree triangle STEP BY STEP - Given Sin Cos or Tan find their double and half-angle ratios.     Convert Degrees, Minutes, Seconds to Degrees (decimals) and vice versa. Convert Cartesian Coordinates to Polar Coordinates and vice versa.  Enjoy a game of Yahtzee. Read Documentation . Download it now. Step by Step Triangle Solver (Ex1): Enter 2 sides and 1 angle to view the steps for the final answer. Step by Step Triangle Solver (Ex2): Enter 1 side and 2 angles to view the steps for the final answer. Look up Trig Formulas Solve any Right Angle Triangle Solve any Non-Right Angle Triangle Trig Functions: Evaluate, Graph, Model. Convert: Polar to Rectangular, Degree/Radian, Degree to Degrees/Minutes/Seconds.  