How do you plot #6-7i# and find its absolute value?
1 Answer
Jul 6, 2017
# |6-7i| = sqrt(85) = 9.219... #
Explanation:
Let:
# z = 6-7i #
Then:
# Re(z) =6 #
# Im(z) = -7 #
Thus
We calculate the absolute value, or modulus, of the number as follows:
# |z| = |6-7i| #
# " " = sqrt(6^2+(-7)^2) #
# " " = sqrt(36+49) #
# " " = sqrt(85) #
# " " = 9.219... #