Question

Given that b is rational and i=−1, what is the product of the expression (3bi)?

a) −3b
b) −3bi
c) 3b
d)3bi

Answer 1

The product of the expression (3bi) is 3bi.

Step-by-step explanation:

The product of the expression (3bi) can be found by multiplying the real number (3) by the imaginary number (bi). When multiplying a real number by an imaginary number, we multiply the real part and the imaginary part separately. In this case, the real part is 3 and the imaginary part is b. So the product is 3 * b * i = 3bi.