Page 13 - Complex numbers

Example 3:

Perform the following calculations,

1. (8.69 − 3.38 )(6.26 + 4.81 )
2. (−6.95 + 3.03 )(14.88 + 10.46 )

3. (9.28 − 11.18 )(15.449 + 20.58 )

4. (2.69 − 9.85 )(−6.88 − 5.82 )
5. (−60.44 + 65.29 )(11.94 − 17.79 )

Express these calculations in the general form

where A and B are complex. The keystrokes from your
fx calculator are,

CQ(A)Q(B)

1 (8.69 − 3.38 )(6.26 + 4.81 )

r

A? 8.69p3.38b=

B? 6.28+4.81b=

n

8