Question: Find x so that the triangle with vertices A=(-4, 3, -2), B=(-6. -1, -9), and C-(-9, 7, x) has a right angle at A.x=_________

Find x so that the triangle with vertices A=(-4, 3, -2),

B=(-6. -1, -9), and C-(-9, 7, x) has a right angle at

Find x so that the triangle with vertices A=(-4, 3, -2), B=(-6. -1, -9), and C-(-9, 7, x) has a right angle at A.x=_________

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