oblem 5. Find the scalar and vector projections of b onto a. (a) a=1,4 and b=2,314/17,14/17,56/17 (b) a=3,6,2 and b=1,2,39/7,27/49,54/49,18/49 (c) a=i^+j^+k^ and b=i^j^+k^1/3,31i^+31j^+31k^