1. The problem statement, all variables and given/known data Given following vectors in R4: v= (4,-9,-6,3) u = (5,-8,k,4) w=(s,-5,4,t) A. Find value of k if u and v are orthogonal B. Find values of S and T if w and u are orthogonal and w and v are orthogonal 2. Relevant equations Orthogonal means dot product is zero 3. The attempt at a solution A. I already solved and got k= 104/6 which is correct B. I tried to solve this one assuming that k was still equal to 104/6 and got s=4 and t=-37/3 But this is not the answer. Do I assume that k is still the same result as in part A or can k be anything? If k is anything than I get: [ 4 3 -21 5 4 (-40-4k) ] as a matrix, but how would I solve this?