H.W Which of the following vectors is normal to the surface x?yz = 1 at (1,1,1)? (a) 4i +j+17k, (b) 2i +j+ 2k, (c) i+j+k, (d) -2i – j – k.

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Q: H.W Which of the following vectors is normal to the surface r?yz at (1,1,1)? (a) 4i +j+ 17k , (c) i+...

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