4 . If A = ax + 30 , and B: 52 x +208 - 6Q find CAB 5. Let E= 3ay + 4ay and F= Jax- 10ag +519, a. Find the component of E along F b. Determine a unit vector I to both Eand F 6. show that vectors a= (4, 0,1 ), 6-(1, 8, # ) and c = ( - 5 , - 3 , - 3 ) form the side , of a triangle . Io this a Right angle triangle ? Calculate the area of the triangle - 7 . 27 P. is ( 1, 2 , - 3 ) and R2 is ( - 4, 9 5 ) find a The distance PP. The vertor equation of the line PIPE " ) The shortest distance between the like P.B and point P2 ( 7, -1,2 )