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" Q."1quad " If "lim(x rarr0){(1)/(x^(8)...

" Q."1quad " If "lim_(x rarr0){(1)/(x^(8))(1-cos(x^(2))/(2)-cos(x^(2))/(4)+cos(x^(2))/(2)cos(x^(2))/(4))}=2^(-k)," then the value of "k" is ".........

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