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If (lim)(xvec0)(f(x))/(x^2)-aa n d(lim)(...

If `(lim)_(xvec0)(f(x))/(x^2)-aa n d(lim)_(xvec0)(f(1-cosx))/(g(x)sin^2x)=b(w h e r eb!=0)dot` then `(lim)_(xvec0)(g(1-cos2x))/(x^4)` is `(4a)/b` b. `a/(4b)` c. `a/b` d. none of these

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