Say S is the unit sphere at the origin. There are two planes: R : x...

Say S is the unit sphere at the origin. There are two planes: R : x + y + z = 2 and T : 2x + y + z = 3. At what point on the unit sphere is the tangent plane (at that point) perpendicular to R and T? Is the point unique?

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milcah answered 2 years ago

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Say S is the unit sphere at the origin. There are two planes: R : x...

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