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- Define the hypercube Qn as follows. The vertex set of Qn is the collection of all 01-strings of length n. Two vertices are joined by an edge if and only if they differ in exactly one bit. Determine the number of vertices, edges and degrees in Qn. Show that Qn is connected.Find a basis for the null space of APlease help, I will surely upvote. Show that (e1,e1,e2,e2,e3,e3,....), Where e1,e2,e3,...are orthonormal basis for hilber space H, is a tight frame with frame bound A=B=2.