PracticePEPartCKey - , 4 7 2 , 4 5 26. -2 -1 0 1 2 2 1 -1...

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PRACTICE FOR PLACEMENT EXAM PART C – ANSWER KEY 1 . Range: ( ) [ )( ) , 4 3 , 0 1 , 2. 3. () 4 , 1 4. [ )( ) , 9 9 , 6 5. x 1 6. 4 7. 3 2 4 + h x 8. 5 + h y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6 y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6
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9. 10. 11. ± ± 2 , 2 3 2 1 i 12. ± ± i i 2 , 2 3 2 1 y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6 x=0 y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6 y=0
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13. 14. 15. 1 ) ln( 3 π 16. {} 4 17. a) () 9 ln 5 + b) 9 18. 3 . 0 19. 20. () ( ) ( ) 1 . 3 sin 1 . 3 cos cos < < < 21. a) 2 1 b) DNE y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6 y x 2 1 3 3 -3 -3 2 -2 -2 1 -1 -1 4 4 -4 -4 5 5 -5 -5 6 6 -6 (0,-e-3) -2 -1 0 1 2 d a b c
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22. a) 2 3 b) 2 23. 3 5 24. 2 5 25. 2 , 4 1 0 , 4 1 0 , 4 3
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Unformatted text preview: , 4 7 2 , 4 5 26. -2 -1 0 1 2 2 1 -1 -2 = x = x 2 2 27. a) 2 b) 7 1 28. a) DNE b) 6 29. ( ) [ ] ( ) x x LHS 2 2 sec tan 1 + = ( ) ( ) ( ) x x x 2 2 sec tan tan 2 1 + + = ( ) ( ) ( ) x x x 2 2 sec tan 2 sec + = ( ) ( ) x x 2 sec tan 2 1 + = ( ) ( ) ( ) x x x 2 cos 1 cos sin 2 1 + = ( ) ( ) ( ) 1 cos cos sin 2 1 2 x x x + = ( ) ( ) x x cos sin 2 1 + = RHS = 30. ( ) ( ) ( ) ( ) x x x x LHS sin cos 1 cos 1 sin + + + = ( ) ( ) ( ) ( ) ( ) ( ) ( ) x x x x x sin cos 1 cos cos 2 1 sin 2 2 + + + + = ( ) ( ) ( ) ( ) ( ) x x x sin cos 1 cos 2 2 + + = ( ) ( ) ( ) ( ) ( ) ( ) x x x sin cos 1 cos 1 2 + + = ( ) x sin 2 = ( ) x csc 2 = RHS =...
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This document was uploaded on 04/19/2011.

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PracticePEPartCKey - , 4 7 2 , 4 5 26. -2 -1 0 1 2 2 1 -1...

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