Step-By-Step Examples; Introduction - HP 40gs User Manual

Step-by-Step Examples

Introduction

Example 1
Step-by-Step Examples
This chapter illustrates the power of CAS, and the
Equation Writer, by working though a number of
examples. Some of these examples are variations on
questions from senior math examination papers.
The examples are given in order of increasing difficulty.
If A is:
calculate the result of A in the form of an irreducible
fraction, showing each step of the calculation.
Solution: In the Equation
Writer, enter A by typing:
3 2
1
1
Now press to select the denominator (as shown
above).
Press to simplify the
denominator.
Now select the numerator
by pressing .
3
-- - 1
–
2
----------- -
1
-- -
+ 1
2
1
2
16
16-1