O (1, 1. 1. -2) O ( 2. 1. 1, 1) (3, 0, 1, 1) D Question 53 Suppose that {b1, b2, b3} is an orthonormal subset of an inner product space. Find the following length: |12b1 + 2b2 + ball . 0 6 O V5 0 3 O V3 Question 54 Suppose that B = {b1, b2, b3} is an orthonormal subset of an inner product space V and that v is a vector in V . of the following expressions is orthogonal to the subspace of V spanned by B ? (v, bi)bi + (v, b2)b2 + (v, by)by Pr EMS O 144 Mix AMD27