Using the CASIO FX-991ZA PLUS
Scientific Calculator to solve equations.
Mirriam Mafojane
[email protected]
JAMES RALPH / CASIO
CALC Eg 1 Key log:w1
3Qzd+4Qx
r
6=
2=
1
CALC Eg 2 Key log:QzQr5Qx+2Qc
r
3=
4=
2
SOLVE Eg 1 Key log: QnQr3Q)p3
Qr
0=
=
SOLVE Eg 2 Key log:
Q)Qr1a3$qKQzdQxq
)Qx
Qr
30=
2.3=
=
3
C2gQ))+3gQ))Qr10q
r=
4