Pre-Calc Homework Solutions 37

Pre-Calc Homework Solutions 37 - Chapter 1 Review 17. 29....

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17. [ 2 6, 6] by [ 2 4, 4] Neither 18. [ 2 1.5, 1.5] by [ 2 0.5, 1.5] Symmetric about the y -axis. 19. y ( 2 x ) 5 ( 2 x ) 2 1 1 5 x 2 1 1 5 y ( x ) Even 20. y ( 2 x ) 5 ( 2 x ) 5 2 ( 2 x ) 3 2 ( 2 x ) 52 x 5 1 x 3 1 x 52 y ( x ) Odd 21. y ( 2 x ) 5 1 2 cos( 2 x ) 5 1 2 cos x 5 y ( x ) Even 22. y ( 2 x ) 5 sec ( 2 x ) tan ( 2 x ) 5 } c s o in s 2 ( ( 2 2 x x ) ) }5} 2 co s s i 2 n x x } 52 sec x tan x 52 y ( x ) Odd 23. y ( 2 x ) 5 } ( 2 ( x 2 ) 3 x 2 ) 4 1 2( 2 1 x ) } 5 } 2 x x 4 3 1 1 1 2 x }52 } x x 3 4 2 1 2 1 x }52 y ( x ) Odd 24. y ( 2 x ) 5 1 2 sin ( 2 x ) 5 1 1 sin x Neither even nor odd 25. y ( 2 x ) 52 x 1 cos ( 2 x ) 52 x 1 cos x Neither even nor odd 26. y ( 2 x ) 5 ˇ ( 2 w x ) w 4 w 2 w 1 w 5 ˇ x 4 w 2 w 1 w Even 27. (a) The function is defined for all values of x , so the domain is ( 2‘ , ). (b) Since ) x ) attains all nonnegative values, the range is [ 2 2, ). (c)
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