Texas Instruments TI-89 사용자 설명서

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Symbolic Manipulation

Solve the system of equations 2x N 3y = 4 and Lx + 7y = L12. Solve the first equation so
that x is expressed in terms of y. Substitute the expression for x into the second

2. Convert 345 degrees to Radian angle

measure.

You can enter “ ú

Rad

” on the entry line by

selecting “ ú

Rad

” from the Catalog menu,

or from the Math menu by pressing 2
I

and selecting

2:angle, B:

Rad

Press 3 D D D B 2

¸ 345 2

v 2 I 2 j B

Note:

You can also use ó,ô, or

override the angle mode setting
temporarily.

Steps and keystrokes

Display