Maths Solution to a equation

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hey guys, does anyone know how to solve this: to isolate n
cos^n(0.18)=sqrt(2)
thanks
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Accepted Answer

KSSV
KSSV on 10 May 2022
syms n
eqn = cos(0.8)^n == sqrt(2) ;
s = solve(eqn,n)
s = 
vpa(s)
ans = 

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