試卷名稱:110年 - 110 國立中山大學_碩士班招生考試_電機系(甲、戊、己、庚組)、通訊所(乙組)、電波聯合:工程數學甲#105948
年份:110年
科目:中山◆電機◆工程數學乙
5.Let E = {V1,V2,V3} be a basis for a three-dimensional subspace S of an inner product space V.
Define
. Suppose E is an orthogonal set with
.Let
Let p be the orthogonal projection of x onto y, and
suppose p = ay, where a is a scalar. Which of the following statements are true?
(A) (x,y) = 7
(B) (x,y) =8
(C) a = 7/33
(D) a = 8/14
(E) lIxll = 62