3. Complete the following questions using the following planes T₂: 2x+4y-6z-2=0 m₂: 7x+14y-21z-7=0 ₂: 4x+8y-11z +5=0 a) Determine the normal vectors for each of the three planes b) Are any of the planes parallel? Show your work (If yes, determine the scalar multiple. If no, show that they are not multiples) c) Are the normals for the three planes coplanar?

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