Question

Vector in Space-Directions and Magnitudes

Let a, b, c, d, e, & f be vectors such that <a,b>=6, <a,c>=6, <a,c>=-4, <b,c>=7, b+c=d, -8a+8b=e, -4b+2c+f
compute the following inner product:
<b,a>=__
<a,d>=__
<e,c>=__
<a,f>=__

Answer 1

forget the <a,c>=6. it suppose be <a,c>=-4