Let vectors ā = (2,1,-4), b = (-3,0,1), and c = (-1,-1,2).
calculate the following:
vector ā * vector b =
what is the angle ɵ ab between vector ā and vector b?
2 vector b * 3 vector c =

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap