The conjugate of a complex number z = a + b i is z * = a - b i. So
(4 - 7i ) + (2 + 3i )* = (4 - 7i ) + (2 - 3i )
… = (4 + 2) + (-7i - 3i)
… = 6 - 10i
and the answer is D.
q
step-by-step explanation:
each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.
the centroid of δabc is point q.