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Unformatted text preview: f ( g ( x )) and g ( f ( x )). 11. Find all numbers x satisfying 1 / ( x + 1) + 1 /x 2 = 2. 12. Find x satisfying 22 x = 8( x + 1). 13. Find x satisfying log 10 ( x 2-1)-log 10 ( x 2 + 3 x + 2) = 1. 14. A drug is absorbed at a rate of 15% / hour. A patient is injected with 25mg when he is admitted to the hospital at 5:00am. The next morning at 5am, the ignorant nurse thought the chart said 5pm, and didnt check his blood level as he was supposed to. When the doctor found out and checked it herself, it was already noon. What is the blood level that she recorded? 15. If triangle ABC is a right triangle, and the length of leg a = 5, the length of leg b = 12, and c is the hypotenuse: a) What is the length of the hypotenuse? b) What is sin( A )? c) What is cot( A )? 1...
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- Fall '08