Since XL uses parenthesis to in-close functions, you would write it:

=COSH(A1)^2

Note that this is different than
=COSH(A1^2)
--
Best Regards,

Luke M
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"Shortstopper00" wrote:

I need to use the funtion COSH squared or COSH ^2 in a cell to calculate an
answer. How can this be done?