True or false on quadratics

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   i squared equals minus one.

2. Statement is true

   No

   Statement

   In a plus ib, b is the real part.

3. Statement is true

   Yes

   Statement

   The Argand x-axis is the real axis.

4. Statement is true

   No

   Statement

   The modulus of z can be negative.

5. Statement is true

   Yes

   Statement

   A degree n equation has n roots.

6. Statement is true

   No

   Statement

   Hamilton introduced the symbol i.

Instructions

Decide whether each statement is true or false.

Explanation