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Show, for a positive integer n, that F^n = W_1âW_2, where W_1 and W_2 are the following subspaces of F^n:
W_1 ={(a1,...,an) â Fn | an = 0}
W_2 ={(a1,...,an) â Fn | a1 = a2 = ··· = anâ1 = 0}.
