设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=
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设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=3x-8+3y
设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=
设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=
设a=(x,4,3),b=(3,-2,y),且a⊥b,则xy=
3x-8+3y=0
x+y=8/3
题目少条件.
因为a向量垂直于b向量,所以3x-8+3y=0 则x y=8/3望采纳
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