Question: The two vectors A and B are drawn from a common point, and C = 1 + B. (a) Show that if C2 = A2

The two vectors A and B are drawn from a common point, and C = 1 + B.
(a) Show that if C2 = A2 + B2, the angle between the vectors A and B is 90°.
(b) Show that if C2 < A2 + B2, the angle between the vectors A and B is greater than 90". (c) Show that if C2 > A2 + B2, the angle between the vectors A and B is between 0° and 90°.

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