Answer:
[tex]a^2 * b = 3i^2[/tex]
Step-by-step explanation:
Given
[tex]a = -i[/tex]
[tex]b = 3[/tex]
Required
Determine [tex]a^2 * b[/tex]
To do this, we simply substitute -i for a and 3 for b in [tex]a^2 * b[/tex]
This gives:
[tex]a^2 * b = (-i)^2 * 3[/tex]
Evaluate the expression in bracket
[tex]a^2 * b = i^2 * 3[/tex]
This gives:
[tex]a^2 * b = 3i^2[/tex]
