उत तर:
# || C || = sqrt (98) #
स पष ट करण:
# ए = (4, -5,2) "" ब = (9,3, -1) #
# ड ल ट x = B_x-A_x = 9-4 = 5 #
# ड ल ट y = B_y-A_y = 3 + 5 = 8 #
# ड ल ट z = B_z-A_z = -1-2 = -3 #
# || C || = sqrt (5 ^ 2 + 8 ^ 2 + (- 3) ^ 2) #
# || C || = sqrt (25 + 64 + 9) #
# || C || = sqrt (98) #
