Hp 49g Graphing Calculator Manuel d'utilisateur Page 126

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TRIGCOS Trigonometry command list-
TRIGSIN
Applies the following substitution, and returns cosine
temis if possible:
2 2
sin (x) 1-cos (x)
Trigonometiy command list—0 (TIg)
Applies the following substitution, and retruns sine terms
if possible:
2 2
cos (x) ^ 1 - sin (x)
Example
This example uses TLIN, in conjimction with EXPAND, to simplify the
following trigonometric expression, and deduce its value:
Tc y
1. Open the Trig command list, and select
TLIN.
ROD XVZ HEK li=
EHdIlEJ
_________
3. Press
4. Open the Algebra command list, and
select EXPAND.
TLINt 1
______________________
,
2. With the cursor positioned between the
parentheses, open Equation Writer and
create the expression. Then press (BTER) to
place it on the command line between the
parentheses.
to simplify the expression.
RRD KVZ HEK li= 'K'
<H0HE?
____________
TLIH(C0StTrXl2)'-'2)
_________
BSO KVZ HEK R= ’K'
EHOHE}
____________
:tlih|cos[^J
1.C0S(2.^)+1
Page 5-16
Working with expressions
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