Consider the subspace H of R4 given by H = -a + 2b + 14c a - 2a + 4b + 28c - 2a a. Find a basis for H. (Note: Use one vector per answerbox. It's okay if some of the answerboxes remain empty.) { } " b. State the dimension of H. dim (H) = Why am I not getting partial credit? : a, b, c ER "

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