In Exercises 82 86, verify that the formulas are correct by carrying out the operations
Chapter 12, Problem 84(choose chapter or problem)
In Exercises 82 86, verify that the formulas are correct by carrying out the operations indicated on the left-hand side of the equations. (This list of formulas appears in A Treatise on Algebra, by George Peacock, published in 1845.)a bia bia bia bi 21a2 b2 2a2 b21a
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