Unformatted text preview: a was ) da ) # 1 in. 5 } 1 1 2 } ft. Since } d d h a } 5 2 120 a 2 2 , we have ) dh ) 5 ) 2 120 a 2 2 da ) # 120(15) 2 2 1 } 1 1 2 } 2 5 } 4 2 5 } ft, so the estimated possible error is 6} 4 2 5 } ft or 6} 1 8 5 } in. 69. } d d y x } 5 2 sin x cos x 2 3. Since sin x and cos x are both between 1 and 2 1, the value of 2 sin x cos x is never greater than 2. Therefore, } d d y x } # 2 2 3 5 2 1 for all values of x . Since } d d y x } is always negative, the function decreases on every interval. 4 p r 2 dr } } 4 3 } p r 3 Chapter 4 Review 203...
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 Spring '08
 GERMAN
 Trigraph, dy dx, dr dr r

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