Simplify.
3+i divided by -2i
Write your answer in the form a+b. Reduce all fractions.
thanks

= -0.5 + 1.5i

Step-by-step explanation:

Given 3+i divided by -2i ⇒

By multiplying the numerator and the denominator by the conjugate of (-2i) which will be equal (2i)

So, =

We should know that: i = √(-1) ⇒ i² = -1

∴

∴ = -0.5 + 1.5i

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9