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OpenStudy (anonymous):
matrix multiplication to find the reflection of v=(2,-5,3) about the xz-plane
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OpenStudy (amistre64):
lets see, x stays put; z stays put, y goes negative
OpenStudy (amistre64):
1 0 0 0 -1 0 0 0 1 would be my bet
OpenStudy (amistre64):
oy this is excrutiating this morning; its like tryig to surf thru peanutbutter ...
OpenStudy (anonymous):
@amistre is totally correct!
OpenStudy (amistre64):
as long as we aint got to do a rotation to get there; i can handle it lol
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OpenStudy (anonymous):
thanks for all
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