Texas Instruments nspire cx - Exact and Approximate Results; Trigonometric Functions

Basics 9
Exact and Approximate Results
Results that are not whole numbers will automatically be shown in
a fractional or symbolic form. An exact result is a fraction and an
approximate result is a decimal.
Nspire Example I
Trig Functions
Press µ to find all the trig functions.
TI-nspire CX CAS 2