Question 380075: !: how to find the additive inverse of each number ?
exp: -4+7i
how to find the absolute value of each complex number ?
exp: |1 - 4i| Answer by kingme18(98) (Show Source):
You can put this solution on YOUR website! Additive inverses for complex numbers are just like they are for real numbers: they mean the number you'd add to get back to 0. Just like real numbers, this means that you change the signs. Thus, the additive inverse of -4+7i is 4-7i
The absolute value is the distance from zero in the complex plane, which means we basically use the distance formula: where x is the real part and y is the imaginary part. |1 - 4i| = = =
