Consider the subspace W = {(a, b, c) : a − b − 2c = 0} . (You need not prove that W is a subspace; this is given.) For what value of n is Pn(R) isomorphic to W? Write down an isomorphism from Pn(R) to W for this value of n.

c

step-by-step explanation:

at least i think its

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .

fyuh

step-by-step explanation:

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