Final answer:
The simplified value of 6i², considering the imaginary unit i where i² equals -1, is -6, corresponding to option b) -6.
Step-by-step explanation:
The student asked what is the simplified value of 6i², where i is the imaginary unit.
In mathematics, specifically algebra, the imaginary unit i is defined such that i² = -1. To simplify 6i², we replace i² with -1:
6i² = 6(-1) = -6
Therefore, the simplified value of 6i² is -6, and the correct option is b) -6. Please remember that when dealing with imaginary numbers, the imaginary unit plays a key role in simplification.
The simplified value of 6i², considering the imaginary unit i where i² equals -1, is -6, corresponding to option b) -6.