b) given that n belongs to N,a>1 and a belongs to R, for x,
solve (log a)x-4(log a^2)x +12(log a^3)x+........+n(-2)^(n-1) (log a^n)x > (1-(-2)^n)/3 (loga)(x^2 - a)
2) given that f(x+1/x)=x^2+ 1/(x^2), find f(x)
if the answer have steps, pls give the steps to me as long as u can,thank you so much!!
更新1:
in Q 1)a), "a^k" and "a" are the base of log Q 1)b) both "a","a^2","a^3","a^n" are the base of log! sorry for the unclear expression! thank you very much@!
