2- = ? (A) 0 (B) 1 (C) 2 (D) 1/2 (E) -1/2 The answer booklet is separate from the book and I do not have it.
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Hello, shailen.sobhee! . . Multiply by Therefore: .
That's brilliant. There there exist a recursion in almost all expressions; take a very simple case: y=
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