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Pre-Calc Homework Solutions 468

Pre-Calc Homework Solutions 468 - 468 Appendix A6 ex 2 e x...

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2. sinh x 5 } 4 3 } cosh x 5 ˇ 1 w 1 w s w in w h w 2 w x w 5 ! 1 § 1 § 1 § } 4 3 } § 2 2 § 5 ! 1 § 1 § } 1 § 9 6 } § 5 ! } 2 9 § 5 } § 5 } 5 3 } , tanh x 5 } c s o in s h h x x } 5 5 } 4 5 } , coth x 5 } tan 1 h x } 5 } 5 4 } , sech x 5 } cos 1 h x } 5 } 3 5 } , and csch x 5 } sin 1 h x } 5 } 3 4 } 3. cosh x 5 } 1 1 7 5 } , x . 0 sinh x 5 ˇ co w sh w 2 w x w 2 w 1 w 5 ! 1 } 1 1 § 7 5 } § 2 2 § 2 § 1 § 5 ! } 2 2 § 8 2 9 5 } § 2 § 1 § 5 ! } 2 6 § 2 4 5 } § 5 } 1 8 5 } , tanh x 5 } c s o in s h h x x } 5 5 } 1 8 7 } , coth x 5 } tan 1 h x } 5 } 1 8 7 } , sech x 5 } cos 1 h x } 5 } 1 1 5 7 } , and csch x 5 } sin 1 h x } 5 } 1 8 5 } 4. cosh x 5 } 1 5 3 } , x . 0 sinh x 5 ˇ co w sh w 2 w x w 2 w 1 w 5 ! } 1 2 § 6 5 9 } § 2 § 1 § 5 ! } 1 2 § 4 5 4 } § 5 } 1 5 2 } , tanh x 5 } c s o in s h h x x } 5 5 } 1 1 2 3 } , coth x 5 } tan 1 h x } 5 } 1 1 3 2 } , sech x 5 } cos 1 h x } 5 } 1 5 3 } , and csch x 5 } sin 1 h x } 5 } 1 5 2 } In Exercises 5–10, graphical support may consist of showing that the graph of the original expression minus the simplified one is the line y 5 0.
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