Asked by Jhun
evaluate cos^2 (ej)
Answers
Answered by
Reiny
If I recall correctly:
cosh(x) = cos(ix) or in your case cos(je)
so cos^2 (ej) = (cosh(e))^2
(Haven't done this in over 60 years)
cosh(x) = cos(ix) or in your case cos(je)
so cos^2 (ej) = (cosh(e))^2
(Haven't done this in over 60 years)
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