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13 Dec 2019
Which of the following os false?
a. Suppose a vector y is orthogonal to vectors u and v. Then y is orthgonal to every vector in Span{u,v}
b. suppose u, v and w are vectors in R^3. If u is orthogonal to v and v is orthogonal to w than u must be orthogonal ot w
c. If M is an orthogonal matrix then u.v = (Mu).(Mv) for any vectors u and v.
d. A matrix M is orthogonal if and only if M^T=M^-1
Which of the following os false?
a. Suppose a vector y is orthogonal to vectors u and v. Then y is orthgonal to every vector in Span{u,v}
b. suppose u, v and w are vectors in R^3. If u is orthogonal to v and v is orthogonal to w than u must be orthogonal ot w
c. If M is an orthogonal matrix then u.v = (Mu).(Mv) for any vectors u and v.
d. A matrix M is orthogonal if and only if M^T=M^-1
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answers
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watching
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