How can you determine whether the sum of several numbers, such as 13 + 45 + 24 +17, is odd or even without actually calculating the sum?

Step-by-step explanation:

Hello,

odd + odd gives even

odd + even gives odd

so odd + odd + even + odd = even + even + odd = even + odd = odd

So the sum is a odd number

thanks

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct