Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR. Р(-1,1, - 2), Q(-2,0,1), R(0, - 2, -1)
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![Find the area of the triangle determined by the points P, Q, and R. Find a unit vector perpendicular to plane PQR.
Р(- 1,1, - 2), Q(-2,0,1), R(0, -2, - 1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff59b6538-146c-4e69-9177-ffcf13d9c3a9%2Fb6e81968-d40f-4b5a-bdea-1a86a1d76e0f%2F649qfoq_processed.png&w=3840&q=75)
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