Question: Problem 4. Let V be an inner product Space, and let {'01, '02, . . . , 11k} be an orthonormal set in V. For

Problem 4. Let V be an inner product Space, and let {'01, '02, . . . , 11k} be an orthonormal set in V. For any :1: E V Show that k (1) \"Jill2 2 2| (8:, vi) I2- i=1 This result is known as Bessel's inequality

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