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Question

The graphs of three hyperbolic functions are drawn. Match the functions with the respective color of their graph?

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Solution

When x approches to 0 the graph will meet withYaxis at infinity which is possible only in cosechx and cothx since cosechx=2exex,cothx=ex+exexex and also cothx>cosechx
sechx gives the maximum value at y=1.
Hence GREEN is cothx
RED is cosechx
BLUE is sechx

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