Hp 49g Graphing Calculator Manuale Utente Scaricare il pdf (Pagina 126)

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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