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2AE03A78-BF75-4BF1-8147-E6354F0D3308.jpeg - Renal Natural...

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Unformatted text preview: Renal ( Natural domain) ( N. D ) @ The natural do man of an expression is the largest sut of inputs for which the expression is defined 2) when do main not explicitly given , the domain is the natural 3) Every explicit domain must be a subset of the natural dema. X - 5 Exl Find domain of 2 x - 6 no explicit domain, ". domain is N.D. currently : restrictions in N. D. come from Div - by - zero ( - ) input to even radical Solve: 2 . x - 6 = 0 @ (Denominator equal zero ) the the 2. 7 = 6 * = 3 .". N. D. is all IR except X = 3 E. G X = ExI Find domain of Vu+ 7 V X x Arguement a Vers * ( Arguement is non negative ) ". Domain is went 2) For Tw+7, Plug in w= - 3 : V(-3)+7 = 14 = 2 ExI Consider x2+ 8. 2 + 16 x2+ 1. *+ 28 I CaHit EAT ( Simplify ( A) by cancellation. (2) Find domain A ( A ) So : (1) ( x + 4 ) . ( x + 4 ) * + 41 mustuse 2 ( x + 7 ) ( * + 9 ) *+7 Amof (2) All PR except *=- 7, *= - 4...
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  • Fall '09
  • SCOTT
  • Elementary arithmetic, natural domain

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