Question -
Answer -
Given:
The vertices of a triangle are A (1, 2, 3), B (0, 4, 1), C (-1, -1, -3)
By using the distance formula,
So, AB/AC = 3/7
AB: AC = 3:7
BD: DC = 3:7
Then, m = 3 and n = 7
B(0, 4, 1) and C(-1,-1, -3)
Coordinates of D byusing section formula is given as
∴The coordinates of Dare (-3/10, 5/2, -1/5).