The only real number solutions to the equation x 2 = 1 are x = 1 and
Question:
The only real number solutions to the equation x2 = 1 are x = 1 and x = –1
(A) Show that
satisfies A2 = I, where I is the 2 × 2 identity.
(B) Show that
satisfies B2 = I.
(C) Find a 2 × 2 matrix with all elements nonzero whose square is the 2 × 2 identity matrix.
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Related Book For
Finite Mathematics For Business Economics Life Sciences And Social Sciences
ISBN: 9780134862620
14th Edition
Authors: Raymond Barnett, Michael Ziegler, Karl Byleen, Christopher Stocker
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