Verify the following.
1. (a - b)2 = a²and - 2ab + b² when a = 1 and
b=-1.
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1
Answer:
verification completed
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Answered by
75
( a - b )² = a² - 2ab + b²
( 1 - 1 ) ² = 1 - 2 + 1
0 = 2 - 2
0 = 0
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