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6 Oct 2020
The hyperbolic cosine function is defined by
![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/777133826822910/question/0.png?img=b3555aef9ff72605aa048f8d8576e096)
(a) Sketch the graphs of the functions ![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/777133826822910/question/1.png?img=c53d383a11620aa334c0c7661647ef41)
and ![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/777133826822910/question/2.png?img=388d30e3e5b3e32c12f2d765cfaa12b0)
on the same axes, and use graphical addition to sketch the graph of ![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/777133826822910/question/3.png?img=54ef19664414840f933b536f3a529688)
(b) Use the definition to show that ![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/777133826822910/question/4.png?img=1dbbac5c294de474afa0b2da052d7689)
The hyperbolic cosine function is defined by
(a) Sketch the graphs of the functions
(b) Use the definition to show that
Nikko BaronganLv7
7 Nov 2020